A New Species of Gomphos (Glires, Mammalia) from the Eocene of the Erlian Basin, Nei Mongol, China

被引：12
|
作者：
Meng, Jin [1 ]
Kraatz, Brian P. [1 ]
Wang, Yuanqing [2 ]
Ni, Xijun [2 ]
Gebo, Daniel L. [3 ]
Beard, K. Christopher [4 ]
机构：
[1] Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA
[2] Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
[3] No Illinois Univ, Dept Anthropol, De Kalb, IL 60115 USA
[4] Carnegie Museum Nat Hist, Sect Vertebrate Paleontol, Pittsburgh, PA 15213 USA
来源：
AMERICAN MUSEUM NOVITATES | 2009年 / 3670期
基金：
美国国家科学基金会; 中国国家自然科学基金;
关键词：
INNER-MONGOLIA; LAGOMORPHA; PHYLOGENY; PERISSODACTYLA; STRENULAGIDAE; PALEOCENE; ANTIQUITY; EVOLUTION; RODENT; MIDDLE;
D O I：
10.1206/673.1
中图分类号：
X176 [生物多样性保护];
学科分类号：
090705 ;
摘要：
Dental and postcranial specimens of Gomphos shevyrevae, sp. nov., from the lower part of the Irdin Manha Formation at the Huheboerhe locality, Erlian Basin, Nei Mongol (Inner Mongolia), are described. The new species differs from G. elkema and G. ellae in having more robust teeth with inflated cusps and stronger lophs and a calcaneus with extra articulation for the astragalus and navicular. The new species is stratigraphically well constrained and probably represents the Youngest known species of the genus, extending its geological record into the Middle Eocene. It also shows that mimotonids coexisted for millions of years as a side branch of duplicidentates with the earliest stem lagomorphs, including Dawsonolagus.
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页码：1 / 11
页数：11
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