Humans In Siberia Flashcards

1
Q

what biological evidence do we have that tells us the first people to reach America were from Siberia?

A

mtDNa and Y-chromosome DNA

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2
Q

Southern Siberia was occupied first when?

A

45,000cal BC

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3
Q

Northeastern Siberia was first occupied when?

A

30,000BP

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4
Q

what was the weather like during this time?

A

harsh dry winters and short hot summers

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5
Q

what 3 sites were the first settlements in Siberia?

A

-Bering Strait
-Dyuktai
-Ushki Lake

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6
Q

what is the Beringian Standstill Hypothesis and what does it say about the colonization of America?

A

a theory that for 8,000 years Ancient Siberian populations were isolated during the last glacial max, but are the sole ancestral population of all native americans

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7
Q

when did Siberians reach Alaska?

A

by 25,000 cal BP

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8
Q

when did some Siberian populations migrate east to the Americas?

A

19,000cal BC, when the climate began to rebound from the last glacial max

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9
Q

when did the split between North East Asians and the first peoples of America happen?

A

20-25,000ya

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10
Q

where is the Bering Strait located?

A

Between the Arctic and Pacific ocean, (Alaska and Russia)

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11
Q

Dyuktai, a site in East Siberia is said to be how old and what was found there?

A

-14,000cal BC
-wedge shaped cores similar to those found during the Denali Complex

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12
Q

what is the Denali Complex?

A

a type of tool tradition found in Alaska but originated in Siberia, that featured sharp microblades, burins and wedge shaped lithic cores

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13
Q

Ushki Lake, a site in Siberia is said to be how old and what was found there?

A

-11,300cal BP
-small, finely stemmed bifacial flaked spear points similar to those found during the Nenana Complex

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14
Q

what is the Nenana Complex?

A

a tool tradition found in Siberia, thought to be 11,000 years old. **known for bifacially flaked, unfluted spear points

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15
Q

what are the 2 migration routes believed to have brought Siberians to NA?

A

-European Origin- Alantic Maritime Route
-Siberian Origin- from Beringia–when the land bridge connected Asia & NA at times of low sea level

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16
Q

what is the Beringia landbridge?

A

a land bridge that connected Asia & NA at times of low sea level 35,000-11,000ya.
**part of the mammoth steppe

17
Q

what are the two migration theories stemming from the Siberian origin?

A

-Ice free corridor
-Coastal migration

18
Q

describe the Ice free corridor

A

migration route that ran between ice sheets, emerging from Beringia
**was not completely open until after 11,000cal BC

19
Q

describe the theory of coastal migration

A

humans migrated into the Americas along the pacific coast

20
Q

what was the official name of the ice free corridor and when did it fully open up?

A

-Mckenzie corridor
-opened by 11,500BC

21
Q

when did the route along the Pacific coast open up?

A

approx 15,000ya

22
Q

what is the shared trait of natives of North East Asia that suggests they are direct descendants of Siberians?

A

shovel shaped incisors

23
Q

what are the types of mtDNA found in all NE Asians around Lake Baikal in southern Siberia?

A

A,B,C, D and X

24
Q

what other type of genetic evidence supports the hypothesis that natives of NE Asia are descendants of Siberians?

A

y-chromosomes- there are 2 specific mutations they share in common

25
Q

what two sites support the theory of coastal migration?

A

-Triquet Island- Heiltsuk FN-14,000ya
-Monte Verde, Chile- as early as 18,500BP
**strong carbon dating: 14,600-12,500BP

26
Q

what was found at the Monte Verde site?

A

-huts made of organic material
-100s of stone artifacts

27
Q

what did the site of Monte Verde prove?

A

Clovis people were not the earliest occupants of America

28
Q

what was found at the Clovis, NM site?

A

**clovis spear points–they were fluted
-blades, multifunctional flakes
-hearths
-bone shafts

29
Q

Clovis supported what migrational theory?

A

Ice Free corridor

30
Q

when was it believed that the Clovis site was occupied?

A

between 13,200 and 10,000ya

31
Q

when did the megafauna extinction take place in the Americas?

A

13,500-12,900ya

32
Q

how many species of animals died during the megafauna extinction in the Americas?

A

34 ganera

33
Q

what did the megafauna extinction in the Americas tell archaeologists?

A

-showed they didn’t drive themselves into extinction
-likely a result of overhunting & climate changes
-humans hunted 1 or 2 at a time
-spear points were found- close range hunting

34
Q

what followed Clovis culture?

A

Folsom- Folsom, NM
**found projectile points and bison remains