期刊
JOURNAL OF HUMAN EVOLUTION
卷 63, 期 1, 页码 205-218出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jhevol.2012.03.010
关键词
Omomyidae; Primate origins; Positional behavior; Ankle; Knee; Dormaal
资金
- Federal Science Policy Office of Belgium [MO/36/020]
- Division Of Behavioral and Cognitive Sci
- Direct For Social, Behav & Economic Scie [0820485] Funding Source: National Science Foundation
Teilhardina belgica is one of the most primitive fossil primates known to date and the earliest haplorhine with associated postcranials, making it relevant to a reconstruction of the ancestral primate morphotype. Here we describe newly discovered postcranial elements of T. belgica. It is a small primate with an estimated body mass between 30 and 60 g, similar to the size of a mouse lemur. Its hindlimb anatomy suggests frequent and forceful leaping with excellent foot mobility and grasping capabilities. It can now be established that this taxon exhibits critical primate postcranial synapomorphies such as a grasping hallux, a tall knee, and nailed digits. This anatomical pattern and behavioral profile is similar to what has been inferred before for other omomyids and adapiforms. The most unusual feature of T. belgica is its elongated middle phalanges (most likely manual phalanges), suggesting that this early primate had very long fingers similar to those of living tarsiers. (C) 2012 Elsevier Ltd. All rights reserved.
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