A One-Million-Year-Old Hominid Distal Ulna From Olduvai Gorge, Tanzania

被引：7

作者：

Hlusko, Leslea J. ^{[1
,2
]}

Reiner, Whitney B. ^{[1
,2
]}

Njau, Jackson K. ^{[3
,4
]}

机构：

[1] Univ Calif Berkeley, Human Evolut Res Ctr, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA

[3] Indiana Univ, Dept Geol Sci, Bloomington, IN 47405 USA

[4] Stone Age Inst, Bloomington, IN 47407 USA

来源：

AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY | 2015年 / 158卷 / 01期

基金：

美国国家科学基金会;

关键词：

paleontology; evolution; paleoanthropology; Pleistocene; AUSTRALOPITHECUS-AFARENSIS; RECENT DISCOVERIES; PARTIAL SKELETON; HADAR FORMATION; PROXIMAL ULNA; WRIST JOINT; KOOBI-FORA; OMO BASIN; LAND-USE; BED-I;

D O I：

10.1002/ajpa.22765

中图分类号：

Q98 [人类学];

学科分类号：

030303 ;

摘要：

Objective: Our aim was to recover new evidence of the evolution of the hominid lineage. Methods: We undertook paleontological fieldwork at Olduvai Gorge, Tanzania, in one of the richest paleoanthropological sites in the world, documenting the evolution of our lineage and its environmental contexts over the last 2 million years. Results: During field work in 2012, the Olduvai Vertebrate Paleontology Project discovered the distal end of a hominid ulna (OH 82) on the north side of Olduvai Gorge a few meters west of the Third Fault, eroding from Bed III sediments that are similar to 1 million years in age. Discussion: The size and morphology of this distal ulna falls within the normal range of variation seen in humans, although at the larger end of the distribution. (c) 2015 Wiley Periodicals, Inc.

引用

页码：36 / 42

页数：7

共 50 条

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Njau, Jackson K.
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