Como eram e quem eram os Portugueses nativos?

belem

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Entretanto já foram feitos alguns estudos, para avaliar qual a influência paleolítica e neolítica, nas populações europeias:

"[...], a similar 2007 study found that the most prominent genetic stratifications in Europe run from the north to the south-east [northern Europe to the Balkans], with another stratification running on an east-west axis across the continent. This latter study points to a strong Paleolithic element in the Iberian gene-pool, confirming earlier findings that Iberia holds the most ancient European ancestry. Despite these stratifications it noted the unusually high degree of European homogeneity: "there is low apparent diversity in Europe with the entire continent-wide samples only marginally more dispersed than single population samples elsewhere in the world."

Indeed, the Paleolithic component in Iberian ancestry had already been ascertained by means of Y-chromosome and mtDNA analysis, a methodology which does not provide strong inferences on genetic population structure but is useful in tracing parts of the routes of migration in the populating of Europe.

[6]
Nevertheless the demic diffusion model remains controversial, to the degree that studies of ancient Mtdna point to the total absence of Neolithic contribution to modern European populations. "



http://w11.zetaboards.com/ethnodiversity/topic/7720185/1/

Trata-se de uma interessante aproximação ao tema, mas mais DNA paleolítico poderá ainda estar por descobrir e por comparar.

No entanto, referem que estes achados confirmam estudos anteriores. Gostaria de saber que estudos anteriores são esses.
 
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belem

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Sim estamos a constactar factos historicos que tais como os outros tem a sua importancia, constactar factos e debate los não são politiza los nao ha q julgar ou confundir as coisas, a nossa nação não é uma nação etnica mas um resultado de uma reconquista territorial, , portanto ha muitas especifidades a serem debatidas fora dos lugares comuns e generalizações politicamente correctas.
Eu pessoalmente e ja estive no sul de Inglaterra na Cornualha, e considero que as relaçoes do NW foi muito grande com a Europa Atlantica, vi demasiadas semelhañças dessa regiao com o NW da penisula, reparem o oceano nao tem montanhas nem vales nem fortalezas sao auto estradas veja se a proximidade do ponto mais a oeste da Bretanha Francesa com o ponto mais a Norte da Galiza! sao extraordinariamente proximas. Mais q os povos continentais germanicos ou outros julgo que o NW tem muitas influencia da chamada Europa Atlantica para nao lhe chamar outra coisa.

Estas são (ou foram) as casas temporárias dos pastores, do Norte de Portugal.


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Algumas têm um tipo de construção muito primitivo em que se usa colmo como cobertura superior.

Por favor, se quiserem enriquecer este tópico com mais exemplos deste género, estejam à vontade.
 
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Fato protetor contra a chuva e a neve que ainda é usado em algumas zonas do Norte de Portugal.

Li algures que este tipo de vestuário era usado, pelo menos, já no Mesolítico (na Europa), portanto no tempo dos caçadores-recoletores da pré-história.
A ver se consigo me lembrar onde foi.
 

belem

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A minha opinião: para Portugal, apenas está descrita uma raça (Caucasóide).

Dentro desta raça, a variedade mediterrânica é a mais comum.
Também temos a variedade Alpina e a variedade Nórdica.

Dentro da variedade mediterrânica, há vários subtipos no nosso país, que constituem claramente a maioria da população: Ibero-insular e Atlanto-Med.

«The cephalic index mean for the entire nation is 76.4, with two prominent peaks in the distribution curve, one at 74 and the other at 77. Regional variation is slight, with provincial means ranging from 75 to 78. The most dolichocephalic local groups live in the northwestern part of the country. The heads of the Portuguese are large in relationship to their stature, with a mean head length of 194 mm. and a breadth of 147 mm.

It is curious that the Portuguese, like the Andalusians, are broader jawed than most Mediterraneans, and comparable in this respect to some Berbers.»

Carleton Coon


Coarse Mediterranean é um subtipo Paleolítico, que ainda existe de forma dispersa, por vezes de forma mais ou menos pura, mas persistente, desde os Atlas do Norte de África, Ilhas das Canárias, passando pela P. Ibérica, França, Ilhas Britânicas (Irlanda, por exemplo) e até à Escandinávia. Por vezes e em todos estes países, se encontra de forma alpinizada.
Na Sardenha, este subtipo, também ainda existe.
Poderá existir fora destas zonas, mas mais raramente.

Alguns grupos de descendentes paleolíticos parecem ser reliquias de um passado, quando ainda não haviam as variedades que conhecemos hoje e que constituem alguns dos primeiros verdadeiros Caucasóides.
Tendo em conta os fósseis, as variedades primitivas de tipo caucasóide, não deverão ter menos de 25.000 anos.

Mais medições:


Spanish:

Quote:
Several relatively complete anthropometric series give us a means of comparing Spaniards with other peoples. A series of 79 Spaniards measured in Madrid116 have head dimensions comparable to those of Yemenite Arabs, Oriental Jews, and Kabyles. The vault length (191 mm.) and breadth (150 mm.) yield a mean cephalic index of 78; the auricular height is 126 mm.


Portuguese:


Quote:
Detailed studies of small regional populations have been made in various parts of Portugal. A particularly interesting community is that of São Pedro Magodouro in a mountainous olive-growing section of Bragança, in the province of Tras os Montes.125 These people are the most dolichocephalic group in Portugal, and may serve as an illustration of one end type in the Portuguese population. Stature is short to moderate, with a mean of 163 cm., the relative sitting height is 51.9; the relative span, 102.5. The head length mean is 193 mm., that of head breadth 141 mm., the auricular height mean, 122 mm.


French:
Quote:
The vault height mean is about 126 mm.


Norwegians:

Quote:
The mean vault dimensions of the recruits from these valleys are: length, 195 mm., breadth, 149 mm., and auricular height, 126 mm., with a cephalic index of 76.8.



Quote:

In body measurements the Valle people are large, although the mean stature of 174.7 cm. for one hundred adult males is not the greatest in this region. The women, with a mean of 160.0 cm., are much smaller. The sex difference in height, as in many other features, is particularly great here, and much greater than in Norway as a whole; it totals 14.1 cm. in Valle, as against 10.0 cm. in the entire country. The Valle people are, as a rule, heavy boned, and like the rest of the population of which they are a part, longer and heavier bodied than members of the eastern Nordic type.

The mean head Length of the Valle males reaches the extreme figure of 198 mm., considerably longer than that of the dolichocephalic eastern Norwegian Nordics; the breadth, 154.9 mm., is as great as that among many brachycephals, although in this case, in view of the exceptional head size, the resultant cephalic index mean is only 78.9. A mean head height of 125 mm. is, however, moderate. The face is large, with a mean nasion-menton height of 128.3 mm., and a bizygomatic breadth of 142.9 mm. The forehead and jaw are broader, likewise, than in most of Norway, with means of 106.6 and 109.2 mm.


The Greeks:

Their heads, with a mean cephalic index of 82, are long for brachycephals (189 mm.), and of moderate breadth (154 mm.); the head height of 127 mm. is moderately high. The occiput protrudes but little in most of the group; 40 per cent have lambdoidal flattening, while some degree of occipital flattening occurs in over 50 per cent. It is pronounced, however. in only about 20 per cent. Their facial breadths are: minimum frontal, 107 mm., bizygomatic, 142 mm., and bigonial, 111 mm.; the great breadth of the jaw, as compared with that of the forehead, is a Greek specialty, and is strongly contrasted with the inverted triangle face form of Albanian Dinarics. The face height is 124.4 mm., the upper face height 75.6 mm.; the facial index, 87, is mesoprosopic, the upper facial index, 53, a little high in comparison with the foregoing. The noses are both long (58.8 mm.) and moderately broad (37 mm.); the nasal index of 63.2, leptorrhine.

Albanians(Ghegs):

Quote:
As one would expect, the head dimensions vary with stature; the mean head lengths in the north range from 186 mm. to 190 mm.; in the south from 183 mm. to 185 mm. The head breadths run from 162 mm. in Malsia ë Madhë to 165 mm. in Luma. The widest heads are thus found in proximity to Old Montenegro. The vaults of the Ghegs are moderately high; ranging from 129 mm. in the north, to 126 mm. in the south.


Albanians(Toscs):

Quote:
The only adequate anthropometric data extant which deals with the Toscs is a series from southwestern Albania, from the town of Gjinokastër and its neighborhood.129 These Aginocastrians are on the short side of medium in stature, with a mean of 164 cm.; they are long-bodied, with a mean relative sitting height of 53.7, and medium in arm extension (rel. span = 103.4). They are, as a rule, medium to lateral in bodily build. Their cephalic index mean, 90.8, is by far the highest recorded in Europe. Their head length, 177 mm., is extremely small, its breadth, 161 mm., great. The auricular height of 122 mm. is moderate to low.



Romanians:

Quote:
The mean head length of 186 mm., and breadth of 151 mm. show a moderately small head size; the auricular height of 125 mm. is relatively high.


Serbs:

Quote:
The Serbs, for their stature, have, even more than the Slovenes, relatively small heads. The mean length is only 182 mm., the breadth 184.5 mm., while the auricular height mean is only 123 mm.


Montenegrins:

Quote:
As is to be expected among men of their stature and bulk, the Montenegrins have large heads, but these are not quite as large as those of the somewhat shorter Irish, Icelanders, or Fehmarners. The mean head length is 188 mm., the breadth 160 mm., the auricular height about 128 mm.


Frisians:

Quote:
They are very large-headed, with mean head lengths of 194 mm. to 198 mm., and breadths of 155 mm. to 159 mm. The West and East Frisians are mesocephalic, with mean cephalic indices of 79.5; the North Frisians are sub-brachycephalic, with means of 81.5. The vault heights run from 123 to 125 mm., moderate in view of the great length and breadth dimensions.


Northwestern Germans(Fehmarn Islanders):


Quote:
The samples studied in northwestern Germany may be divided into two groups, Fehmarn Island48 and all others.49 The island of Fehmarn, lying in the Baltic south of the Danish archipelago, some fifteen miles across the Fehmarn Belt from the Danish island of Laaland, is separated from the Schleswig-Holstein mainland by a narrow sound. The population of Fehmarn is derived from an old Wendish element, dating from the time of the Slavic expansion, to which have been added Low Saxons and immigrants from Dithmars, the southwestern coast of Schleswig-Holstein, just south of North Frisia. There is also without doubt a considerable survival of genetic factors from the pre-Wendish occupants. In modern times the Fehmarn people have been moderately isolated, enough so to have developed and preserved a local type of their own.

This type, in brief, is the nearest living approximation to the Borreby race of the Mesolithic. The Fehmarners are very tall (173.6 cm.), broad-shouldered, wide-spanned, but at the same time long-legged; their heads are of prodigious size, with a mean length of 194 mm., breadth of 162 mm., and heights of 129 mm.

...

The Fehmarners, although quite variable individually, cannot readily be divided into distinct sub-types, since the prevailing Borreby strain has permeated the small, endogamous population thoroughly. Correlations indicate the presence in small numbers of a more brachycephalic element characterized by darker eyes than the total group, and by a convex nasal profile; this may be a Bell Beaker Dinaric survival, but if so it is almost completely absorbed. There seems to be little evidence of a classical Nordic type in this large-headed, coarse-featured group; what Nordic blood has entered into the blend has been recombined or bred out.



Anatolian Turks:

Quote:
The head form of the Turks as a whole is only moderately brachycephalic; 84.2 is the mean for Anatolia, and this varies from 81.8 in Brussa, between Smyrna and the Hellespont, to 85.4 in the eastern provinces, and 86.6 in Kastamuni, on the southern shore of the Black Sea. The western and southern Turks are low brachycephals, the eastern and northern ones high. In the regions of Brussa, Smyrna, and Konia, there is, therefore, an important long-headed minority. For the most part the heads of Turks are not large; the mean length for Anatolia is 181.6 mm., the breadth 152.6 mm., while the auricular height mean is 126.1. These dimensions could easily be matched among Yugoslavs or Macedonians. In Smyrna, the longest-headed province, the mean head length rises to nearly 184 mm., in Kastamuni it falls to 180 mm. The breadth similarly varies between 150 mm. and 156 mm.; even the roundest-headed region has a relatively small head breadth. It is interesting to note that th Greeks of the north shore of Asia Minor have the same head form as the Turks, but to a more exaggerated degree; with a length mean of 180.7 mm., breadth of 157.6 mm., and cephalic index of 87.2.

The faces of the Osmanli Turks of Anatolia, as well as their head vaults, have dimensions reminiscent of southeastern Europe. The total face height mean for the whole is 122 mm., and this varies little throughout the region. The bizygomatic mean, 140 mm., is also relatively constant, but narrowest in the Smyrna district. The minimum frontal, about 105 mm., is not excessive, nor is the bigonial, 108 mm. In these dimension the Turks resemble Balkan Mediterraneans and Alpines; their faces are not long enough for exaggerated Dinarics. Like the Greeks and the peoples to the west of the Black Sea, they preserve a forehead-jaw ratio which emphasizes the width of the mandible. The nose, with a mean height of 57 mm. and a breadth of 35.3 mm., is, however, fully Dinaric. It is largest (59 mm. by 36 mm.) in the eastern provinces, smallest (56 mm. by 35 mm.) in Smyrna. The nasal index of 62.4 is leptorrhine, but not as much so as that of Albanians.

British:

Quote:
Measurements on the head height and on the facial dimensions of British are not numerous enough or sufficiently standardized to be satisfactory.


Irish:

Quote:
His head is large, for Ireland has consistently the largest head size of any equal land area in Europe. The three principal vault dimensions of his head, 196 mm. by 154 mm. by 125 mm., give him the mesocephalic cephalic index of nearly 79, and the moderately hypsicephalic length-height index of 64. His cranial vault, like his body, could again be matched among the larger-headed peoples of Scandinavia and the Baltic lands.


*Hooton has head height for Irish as variable, mean head height of 120.18mm in the Aran Islands to 126.74 mm in N. Fermanagh-E. Donegal-Tyrone-Londonderry. The county average is 124.98 mm. The zone of lead head height is Sligo-Galway crescent including east Longford-Westmeath. West Galway, Mayo and Kerry showing diminished mean head heights. Minimum head height for Irish males was 120.18mm

(Med.-Caucasoid)Yemenis:

Quote:
The bodies of these Yemenis are slightly built; gross observations on constitutional type show the Yemenis to be predominantly leptosome in 60 per cent of cases, and rarely if ever pyknic. The relative shoulder breadth of 21.5 is smaller than that found in most European groups; the relative span of 102 resembles that of the pure Nordic groups of east Norway, and a relative sitting height of 51.3 is less than that found among most Europeans. The Yemenis, although short, are relatively long legged. Their heads are of moderate dimensions, with a mean length of 188 mm. and a mean breadth of 143 mm., giving a cephalic index of 76, which lies on the upper border of dolichocephaly. It is to be noted that while the head form is the same as that of the Nordic race, the length and breadth dimensions are considerably smaller. The head height of 125 mm. is moderately high, and comparable to Nordic dimensions.»

Os caçadores da pré-história tinham normalmente uma abóbada craniana mais baixa e os agricultores tinham maioritariamente uma abóbada craniana, mais alta. Mas também existiram caçadores com uma abóbada alta, ainda que tivessem aparecido mais recentemente e fossem menos numerosos.
 
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belem

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Tendo em conta esta importante contribuição das populações aborigenes locais para a composição da população portuguesa, importa compreender o nosso contexto climático, geográfico, mas também o porquê de terem sobrevivido tanto tempo a invasões e de que forma se integraram nas atividades rurais e de exploração de recursos.

Aparentemente, os povos ibéricos nativos rapidamente se tornaram muito produtivos, razoavelmente numerosos e auto-suficientes.

A perda do idioma de uma população constituída por várias centenas de pessoas, é algo que pode ocorrer em décadas, mas também pode levar séculos.

Um artigo que nos retrata a transição da caça-recoleção para a agricultura na Peninsula Ibérica (que irei tentar encontrar e colocar aqui), diz-nos que os povos paleolíticos da Ibéria, também estiveram envolvidos expansão da agricultura, através da aprendizagem e do contato com outros povos, mas não sei qual o nível de evidência que colocaram em torno deste argumento.

O que parece para já evidente, é que ainda nos nossos dias muita da atividade rural ainda é exercida por gentes com estas origem profundas.

Lanço então a questão,: para vocês, qual a razão para esta quantidade apreciável de elementos paleolíticos, na nossa população?

Existem lendas, sobre gentes primitivas que viviam nas montanhas?

Os caretos, são uma forma de recordação cultural milenar dessas gentes?

Quando tiver mais tempo, vou rever o caso específico de povos antigos como as populações Ainu, Berber e Saami, por exemplo.

Os Guanches, também podem dar-nos indicações muito importantes, pois viviam literalmente entre a caça-recoleção e um tipo de agricultura primitivo.
 
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Oliveira de Azeméis(278m)
as pessoas das montanhas suspeito que tenha a ver com a cultura dos castros pois são sempre em locais altos , como os romanos preferiam as regioes mais baixas e ferteis e forçaram as populaçoes a descer tambem estas esqueceram-se da sua ancestralidade e ficaram intrigadas com aqueles edificios no alto.
os caretos são uma tradiçao muito antiga pre-cristã como se sábe as festividades cristas usurparam as já existentes e assim ganharam influencia sobre o paganismo, muitos ritos que se pensão ser saxonicos já existiam na iberia, por exemplo as aboboras com velas dentro do haloween não são novas em portugal e galiza usava-se essa tradição chamavam-se cucas
 

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belem

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Como já foi dito, a colonização pré-histórica parece ter sido sobretudo oriunda da Ásia Ocidental, quando vários tipos de humanos, saíram de África e colonizaram o planeta.
Parece que mesmo em África, já existiam várias tribos caucasóides, que durante os períodos mais verdejantes, se estendiam pelo menos, até países como o Mali.

Relativamente ao Y-DNA e possíveis conexões da P. Ibérica com o Norte de África:

«High-resolution analysis of human Y-chromosome variation shows a sharp discontinuity and limited gene flow between northwestern Africa and the Iberian Peninsula»

Bosch E, Calafell F, Comas D, Oefner PJ, Underhill PA, Bertranpetit J.


Sobre mudanças culturais verificadas no Calcolítico foi publicada uma cronologia absoluta do fenómeno campaniforme a Norte do Estuário do Tejo e as respetivas implicações demográficas e sociais:

http://tp.revistas.csic.es/index.php/tp/article/view/665/687

http://forwhattheywereweare.blogspot.pt/



Mais sobre a anatomia das populações pré-históricas:


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The Upper Paleolithic Europeans were modern Caucasoids. During their span of 20,000 years, their bodies changed physically very little if at all, for their adjustments to their environment left nothing to be desired. The famous "Old Man of Cro Magnon" was not a giant, as often depicted, but only 5 feet, 6 inches(168.4 cm) tall. The mean stature for twelve adult male skeletons was 5 feet, 8 inches 173 cm). The tallest 5 feet, 11 1/2 inchs(182cm), and the shortest was 5 feet, 3 inches(160cm). The five female skeletons recorded had a mean sature of 5 feet, 1 inch(155.5 cm) and a range from 5 feet, 1/2 inch(154 cm) to 5 feet, 2 inches(157.5 cm). This sex difference in stature varies closely with that in head size, as we shall presently see.

The limb bones of these people were rather slender, like those of Mount Carmel people, and their hands and feet were normal for slenderly built Europeans. We know this from negative silhouettes made by spraying pigment out of bone tubes over hands held against a cave wall, and from footprints found on cave floors.

There is little evidence that the Upper Paleolithic Europeans absorbed the Neanderthals that preceded them. Why the Neanderthals faded away is a mystery. One may postulate that they succumbed to diseases brought by their successors to which they had no genetic immunity, just as smallpox and tuberculosis decimated the American Indians; or one can suppose that they were hunted down by the invaders(which has also been done in modern times); or perhaps they died of crowding or of grief. (Is it possible that, because of phonemic limitations, they could not learn their invaders' languages? Or only with a poor accent?)

About the fate of the Upper Paleolithic hunters there is no mystery. They did not vanish with the mammoths on whose flesh they feasted and from whose ribs they built large oval houses on the steppes of Russia. They survived the Pleistocene, and their descendants in Europe and in Asia became Mesolithic salmon-seiners, Neolithic villagers, Bronze Age warriors, and Iron Age Vikings. They followed the reindeer to the edge of the ice, and, when it melted, they remained there. They were restless. After they had learned agriculture and cattle breeding from others like themselves who had come from the east, they expanded, migrating southward and eastward in many waves. One of those waves reached India and later spread to many other parts of the world.

From "Racial Adaptations: A study of the origins, nature, & significance of racial variations in humans" by Carleton S. Coon, 1982

Physical Characteristics of EMH

The physical characteristics of Early Modern Human are quite similar to modern humans, although perhaps a bit more robust, particularly seen in femora--the leg bones. The differences, which are slight, have been attributed to the shift away from long distance hunting strategies to sedentism and agriculture.

A recent study by Trent Holliday comparing early and late Upper Paleolithic skeletal materials provided an average male height of 170 centimeters (early) and 168 centimeters (late), and average female height of 157.6 cm (early) and 158.4 (late). However, Formicola and Giannecchini's data revealed that "EUP males are much taller (176.2 cm) and LUP shorter (165.6 cm), with an average difference of 10.6 cm. Similarly EUP females (162.9 cm) largely exceed LUP females (153.5 cm)." I think the jury is still out.

http://archaeology.about.com/od/earlymansites/a/cro_magnon.htm

Abstract

Systematic excavations at the site of the Sima de los Huesos (SH) in the Sierra de Atapuerca (Burgos, Spain) have allowed us to reconstruct 27 complete long bones of the human species Homo heidelbergensis. The SH sample is used here, together with a sample of 39 complete Homo neanderthalensis long bones and 17 complete early Homo sapiens (Skhul/Qafzeh) long bones, to compare the stature of these three different human species. Stature is estimated for each bone using race- and sex-independent regression formulae, yielding an average stature for each bone within each taxon. The mean length of each long bone from SH is significantly greater (p < 0.05) than the corresponding mean values in the Neandertal sample. The stature has been calculated for male and female specimens separately, averaging both means to calculate a general mean. This general mean stature for the entire sample of long bones is 163.6 cm for the SH hominins, 160.6 cm for Neandertals and 177.4 cm for early modern humans. Despite some overlap in the ranges of variation, all mean values in the SH sample (whether considering isolated bones, the upper or lower limb, males or females or more complete individuals) are larger than those of Neandertals. Given the strong relationship between long bone length and stature, we conclude that SH hominins represent a slightly taller population or species than the Neandertals. However, compared with living European Mediterranean populations, neither the Sima de los Huesos hominins nor the Neandertals should be considered ‘short’ people. In fact, the average stature within the genus Homo seems to have changed little over the course of the last two million years, since the appearance of Homo ergaster in East Africa. It is only with the emergence of H. sapiens, whose earliest representatives were ‘very tall’, that a significant increase in stature can be documented.

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http://www.sciencedirect.com/science/article/pii/S0047248411002193

W.W. Howells, 1997, Getting Here: the story of Human Evolution, p. 188.
Quote:

If Upper Paleolithic people were "European" from about 35,000 B.P., then such population distinctions are at least that old. And the Cro-Magnons were already racially European, i.e., Caucasoid. This has always been accepted because of the general appearance of the skulls: straight faces, narrow noses, and so forth. It is also possible to test this arithmetically ... Except for Predmosti 4, which is distant from every present and past population population, all of these skulls show themselves to be closer to "Europeans" than to other peoples - Mladec and Abri Pataud comfortably so, the other two much more remotely.

Desde que apareceu a agricultura, observou-se um decrescimento da robustez do crâneo, da capacidade cerebral e da estatura.
Os fémures também perderam robustez.
 
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belem

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Já está comprovado que existiu hibridização na formação de certas populações modernas, com pelo menos 2 ou 3 tipos diferentes de hominídeos arcaicos.

O único grande continente, onde isto não aconteceu foi na América (Norte e Sul).

Mas o próprio homem moderno, antes de sair de África e colonizar o mundo, não era propriamente homogéneo e várias bolsas de diversidade existiram no Sahara, quando este era mais húmido. Quando secava as populações refugiavam-se em zonas húmidas e ficavam isoladas umas das outras, durante vários milhares de anos.
Este padrão de isolamento em áreas com caraterísticas únicas, criou uma enorme diversidade.
Aliás até tempos surpreendentemente recentes, diferentes espécies de hominídeos conviviam quase lado a lado.

Before they left Africa, early modern humans were diverse

(Phys.org) —Researchers have carried out the biggest ever comparative study of stone tools dating to between 130,000 and 75,000 years ago found in the region between sub-Saharan Africa and Eurasia. They have discovered there are marked differences in the way stone tools were made, reflecting a diversity of cultural traditions. The study has also identified at least four distinct populations, each relatively isolated from each other with their own different cultural characteristics.

The research paper also suggests that early populations took advantage of rivers and lakes that criss-crossed the Saharan desert. A climate model coupled with data about these ancient water courses was matched with the new findings on stone tools to reveal that populations connected by rivers had similarities in their cultures. This could be the earliest evidence of different populations 'budding' across the Sahara, using the rivers to disperse and meet people from other populations, says the paper published in the journal, Quaternary Science Reviews.

The researchers from the University of Oxford, Kings College London and the University of Bordeaux took over 300,000 measurements of stone tools from 17 archaeological sites across North Africa, including the Sahara. For the first time they combined the stone tool data with a model of the North African environment during that period, which showed that the Sahara was then a patchwork of savannah, grasslands and water, interspersed with desert. They also mapped out known ancient rivers and major lakes, building on earlier research by Professor Nick Drake, one of this paper's co-authors. By modelling and mapping the environment, the researchers were then able to draw new inferences on the contexts in which the ancient populations made and used their tools. The results show, for the first time, how early populations of modern humans dispersed across the Sahara, one after the other 'budding' into populations along the ancient rivers and watercourses.

Lead researcher Dr Eleanor Scerri, visiting scholar at the University of Oxford, said: 'This is the first time that scientists have identified that early modern humans at the cusp of dispersal out of Africa were grouped in separate, isolated and local populations. Stone tools are the only form of preserved material culture for most of human history. In Africa, owing to the hot climate, ancient DNA has not yet been found. These stone tools reveal how early populations of modern humans dispersed across the Sahara just before they left North Africa. While different populations were relatively isolated, we were interested to find that when connected by rivers, they share similarities in their tool-making suggesting some interaction with one another.'

The researchers used a variety of tests in order to rule out causes of variability, such as differences in raw materials. This was done to establish that tool-making traditions were consistently culturally distinctive among the different populations in the study.

Dr Scerri said: 'Not much is known about the structure of early modern human populations in Africa, particularly at the time of their earliest dispersals into Eurasia. Our picture of modern human demography around 100,000 years ago is that there were a number of populations, varying in size and degree of genetic contact, distributed over a wide geographical area. This model of our population history supports other theories recently put forward that modern humans may have first successfully left Africa earlier than 60,000-50,000 years ago, which had been the common view among scholars. Our work provides important new evidence that sheds light on both the timing of early modern human dispersals out of Africa and the character of our interaction with other human species, such as Neanderthals.'

Co-author Dr Huw Groucutt, from the School of Archaeology at the University of Oxford, said: 'The question of whether there was an early successful exit from Africa has become one of whether any of the populations discovered in this paper went in and out of Africa for some or all of this time. A crucial next step involves fieldwork in areas such as the Arabian Peninsula to understand how these populations spread into Eurasia. The ongoing fieldwork by the Oxford University based Palaeodeserts Project is seeking to do exactly that, and we are making some remarkable discoveries in the deserts of Arabia, which may also have been the region where both Neanderthal and Homo sapiens populations may have interacted.'



http://phys.org/news/2014-08-left-africa-early-modern-humans.html


https://www.academia.edu/7529898/Prehistory_in_North_Africa_after_the_Middle_Palaeolithic

https://www.youtube.com/watch?v=XdP-Wjd1qSY
 

belem

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uma pergunta sabes alguma coisa sobre o tipo de pé(grego ou romano) e a nossa linhagem


Eng_foot_type.gif



«It has a long association with disputed anthropological and ethnic interpretations. Morton called it Metatarsus atavicus, considering it an atavism recalling prehuman grasping toes. In statuary and shoe fitting it has been called the Greek foot (as opposed to the Egyptian foot, where the great toe is longer). A longer second toe has often been associated with royalty, particularly during the rule of the Ptolemaic dynasty when Egypt was under Greek rulership. It was an idealized form in Greek sculpture, and this persisted as an aesthetic standard through Roman and Renaissance periods and later (the Statue of Liberty has toes of this proportion). There are also associations found within Celtic groups. The French call it pied ancestral or pied de Néanderthal.»

http://en.wikipedia.org/wiki/Morton's_toe


«According to anatomists three quarters of the population have a so-called Egyptian foot which is characterized by a great toe longer than the second toe, 1/6 of the population have a so-called Greek foot where the great toe is shorter than the second toe, while the rest of the population have a square foot where the great toe has the same length as the second. The reference to Egypt is due to the fact that in Egyptian paintings (where usually feet were shown from a profile point of view) the great toe appeared longer than the second toe. The reference to Greece is due to the fact that Greek statues showed feet having the second toe longer than the great toe.
Notwithstanding the prevailing anatomy, nearly all the Roman statues, often copies of Greek originals, have Greek feet. It is not easy to find a statue with an evident Egyptian foot, because even Egyptian statues have Greek feet. Anyhow maybe by chance, maybe on purpose the colossal statue of the Nile in Piazza del Campidoglio was restored by replacing its lost foot with a distinctly Egyptian foot. Neoclassic artists had such an admiration for Greece that their statues have Greek feet bordering deformity. Rinaldo Rinaldi, a scholar of Canova, provided a perfect example of this tendency in his statue of Faith in S. Marcello.»


É só mais um detalhe que dizem ser ancestral.

Terei que verificar se existe alguma conexão realista com fósseis de humanos primitivos.

Mas há aspetos comprovadamente primitivos (além dos que já foram mencionados neste tópico) que são: dentes grandes (e também caninos relativamente desenvolvidos conjugados com a existência de dentes do siso, etc...) e algum prognatismo...
Mesocefalia e dolicocefalia (braquicefalia, era menos comum).
Nariz sobretudo de tipo mesorrino ou platirrino (em Caucasóides, mesorrino é o mais frequente para os casos primitivos, platirrino só para casos extremos).
Uma saliência óssea deverá estar presente no osso frontal (acima do olho). É frequentemente chamadas de arcada supraciliar. Isto, teorizam alguns, servia de proteção para os olhos contra pancadas e golpes.


Mas devem haver outros tantos, de que depois pode-se falar.
E não é necessário ter todos os pormenores combinados, para se ter uma maior proximidade com os caçadores da pré-história do que com exemplos mais modernos.
 

belem

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Nos casos primitivos, também existe alguma tendência para haver intolerância à latose (em Portugal e Espanha, atinge-se um dos níveis mais altos da Europa) e para apresentar níveis de testosterona mais altos (e com efeito no físico das pessoas, daí inerente).
A intolerância à latose, também pode estar presente de forma recessiva e manifestar-se em outros membros da família. Mas a adaptação à latose, em princípio, não levou a alterações significativas na anatomia humana, pelo menos, não deverá ser sequer minimamente comparável aos efeitos causados pelo sedentarismo e pela perda de testosterona.
 

camrov8

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Oliveira de Azeméis(278m)
obrigado, quanto a lactose já tinha visto que indica há quanto tempo um certo grupo inclui-o o leite na sua alimentação. Mais uma coisa tenho um colega medico e numa conversa indicou que as várias etnias têm diferentes tolerâncias ao álcool, sendo a oriental com menor e a europeia uma das mais tolerantes so superada por outra que não me lembro