Amino-acid diagenesis and its implication for late Pleistocene lacustrine sediment, Clear Lake, California

1988 ◽  
pp. 161-170 ◽  
Author(s):  
David J. Blunt ◽  
Keith A. Kvenvolden
Keyword(s):  
Amino Acid ◽  
Late Pleistocene ◽  
Lacustrine Sediment ◽  
Clear Lake

Denisovan DNA in Late Pleistocene sediments from Baishiya Karst Cave on the Tibetan Plateau

Science ◽  
2020 ◽  
Vol 370 (6516) ◽  
pp. 584-587
Author(s):  
Dongju Zhang ◽  
Huan Xia ◽  
Fahu Chen ◽  
Bo Li ◽  
Viviane Slon ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Amino Acid ◽  
Tibetan Plateau ◽  
Late Pleistocene ◽  
Amino Acid Substitution ◽  
Middle Pleistocene ◽  
The Tibetan Plateau ◽  
Karst Cave ◽  
Late Middle Pleistocene

A late Middle Pleistocene mandible from Baishiya Karst Cave (BKC) on the Tibetan Plateau has been inferred to be from a Denisovan, an Asian hominin related to Neanderthals, on the basis of an amino acid substitution in its collagen. Here we describe the stratigraphy, chronology, and mitochondrial DNA extracted from the sediments in BKC. We recover Denisovan mitochondrial DNA from sediments deposited ~100 thousand and ~60 thousand years ago (ka) and possibly as recently as ~45 ka. The long-term occupation of BKC by Denisovans suggests that they may have adapted to life at high altitudes and may have contributed such adaptations to modern humans on the Tibetan Plateau.

Sea-cave temperature measurements and amino acid geochronology of British Late Pleistocene Sea stands

1993 ◽  
Vol 8 (4) ◽  
pp. 359-364 ◽  
Author(s):  
John T. Hollin ◽  
Franklin L. Smith ◽  
John T. Renouf ◽  
D. Graham Jenkins
Keyword(s):  
Amino Acid ◽  
Late Pleistocene ◽  
Temperature Measurements
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