Subject
Geology, Stratigraphic
3
Glacial epoch
2
Antiquities, Prehistoric
1
Geological time
1
Human beings Effect of climate on
1
Human ecology
1
Hunting and gathering societies
1
Indians of North America Antiquities
1
Last Glacial Maximum
1
North America Antiquities
1
Paleo-Indians
1
Paleoclimatology
1
Paleoecology
1
Pleistocene-Holocene boundary
1
Prehistoric peoples
1
South America Climate
1
Southwest, New Climate
1