Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.4202/app.2010.0097 |
Therian femora from the Late Cretaceous of Uzbekistan | |
Chester, Stephen G. B.1; Sargis, Eric J.1,2,3; Szalay, Frederick S.4; Archibald, J. David5; Averianov, Alexander O.6 | |
通讯作者 | Chester, Stephen G. B. |
来源期刊 | ACTA PALAEONTOLOGICA POLONICA
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ISSN | 0567-7920 |
出版年 | 2012 |
卷号 | 57期号:1页码:53-64 |
英文摘要 | Femora referable to metatherians and eutherians recovered from the Bissekty Formation, Dzharakuduk, Kyzylkum Desert, Uzbekistan (90 Mya), are described. Fourteen isolated specimens were sorted based on size and morphology into groups that likely correspond to the species level or higher. Groups were then tentatively assigned to taxa known from teeth, petrosals, and/or other postcrania at these localities. One distal femur of a small arboreal metatherian, and several eutherian distal femora that probably represent zhelestids and/or zalambdalestids were identified. With the exception of one proximal femur that is similar in some aspects to the zalambdalestid Barunlestes, and a previously described multituberculate specimen, all other proximal femora from the Bissekty Formation exhibit a metatherian-like morphology. The dental record currently suggests the presence of twelve eutherian species and only one metatherian at Dzharakuduk, whereas the humeral and crurotarsal evidence supports the presence of at least two or four metatherian species, respectively. Given the sample size of the proximal femora, the morphological diversity present, and the overwhelming presence of eutherians at these localities, it is highly unlikely that the overwhelming majority of proximal femora actually represent metatherians. Therefore, this sample may suggest that the metatherian proximal femoral condition is primitive for Theria and that some eutherian taxa (probably including Zhelestidae, which are dentally most abundant at these localities) retain this condition. |
英文关键词 | Theria Metatheria Eutheria Zhelestidae Zalambdalestidae femur Cretaceous Uzbekistan |
类型 | Article |
语种 | 英语 |
国家 | USA ; Russia |
收录类别 | SCI-E |
WOS记录号 | WOS:000302518800004 |
WOS关键词 | METATHERIAN-EUTHERIAN DICHOTOMY ; FUNCTIONAL-ADAPTIVE ANALYSIS ; POSTCRANIAL SKELETON ; HINDLIMB ; MAMMALIA ; MORPHOLOGY ; ANATOMY ; BONES ; ADAPTATIONS ; EVOLUTION |
WOS类目 | Paleontology |
WOS研究方向 | Paleontology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/170935 |
作者单位 | 1.Yale Univ, Dept Anthropol, New Haven, CT 06520 USA; 2.Yale Univ, Div Vertebrate Zool, New Haven, CT 06520 USA; 3.Yale Univ, Div Vertebrate Paleontol, New Haven, CT 06520 USA; 4.Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA; 5.San Diego State Univ, Dept Biol, San Diego, CA 92182 USA; 6.Russian Acad Sci, Inst Zool, St Petersburg 199034, Russia |
推荐引用方式 GB/T 7714 | Chester, Stephen G. B.,Sargis, Eric J.,Szalay, Frederick S.,et al. Therian femora from the Late Cretaceous of Uzbekistan[J],2012,57(1):53-64. |
APA | Chester, Stephen G. B.,Sargis, Eric J.,Szalay, Frederick S.,Archibald, J. David,&Averianov, Alexander O..(2012).Therian femora from the Late Cretaceous of Uzbekistan.ACTA PALAEONTOLOGICA POLONICA,57(1),53-64. |
MLA | Chester, Stephen G. B.,et al."Therian femora from the Late Cretaceous of Uzbekistan".ACTA PALAEONTOLOGICA POLONICA 57.1(2012):53-64. |
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