Hypertragulus calcaratus

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Series: GSA Special Papers
Published: 01 April 2009
DOI: 10.1130/2009.2452(13)
...., the middle Chadronian–late Chadronian boundary, 34.8 Ma) is located at ‒18 ± 2 m, and the first occurrence of the camel Poebrotherium wilsoni (34.2 Ma) is located at 0 ± 2 m. The first occurrences of two other artiodactyls (Hypertragulus calcaratus and Leptomeryx evansi), which define the Chadronian-Orellan...
Series: GSA Special Papers
Published: 01 January 2008
DOI: 10.1130/2008.2435(08)
... ). The mammalian fauna of the Florissant Formation represents the Chadronian North American land mammal age (NALMA), which is defined by the first appearance of the oreodontid Bathygenys . Its termination (and onset of the next younger Orellan NALMA) is marked by appearance of the artiodactyl Hypertragulus...
Journal Article
Published: 01 May 2014
Journal of Paleontology (2014) 88 (3): 434–443.
..., Hypertragulus calcaratus, Hypertragulus tricostatus, Protohippus , and Procamelus occidentalis . Proceedings of the Philadelphia Academy of Natural Sciences , 25 : 410 – 420 . Duarte J. M. B. Gonzalez S...
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