Aclistomycter: Difference between revisions
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''Aclistomycter'' was a very small [[herbivore|herbivorous]] [[artiodactyl]] with a short face, small, but tusk-like [[canine teeth]]. The type specimen (TMM 41213-1) consists of a skull and jaws and two other specimens are referred to it: TMM 41216-11, skull with C-M^3; TMM 41211-9, skull fragment with M^1-M^3. |
''Aclistomycter'' was a very small [[herbivore|herbivorous]] [[artiodactyl]] with a short face, small, but tusk-like [[canine teeth]]. The type specimen (TMM 41213-1) consists of a skull and jaws and two other specimens are referred to it: TMM 41216-11, skull with C-M^3; TMM 41211-9, skull fragment with M^1-M^3. |
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==Taxonomy== |
==Taxonomy== |
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''Aclistomycter'' was named and assigned to |
''Aclistomycter'' was named and assigned to Merycoidodontidae and the Merycoidodontinae by Wilson (1971). But Lander (1998) erected a new subfamily for it, the Aclistomycterinae. <ref>J. A. Wilson. 1971. Early Tertiary vertebrate faunas, Vieja Group. Trans-Pecos Texas: Agriochoeridae and Merycoidodontidae. Texas Memorial Museum Bulletin</ref><ref>B. Lander. 1998. Oreodontoidea. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary mammals of North America 402-425</ref> Wilson recognized it was more primitive than ''Leptauchenia'' and Lander placed it as more derived than the bathygenines but basal to leptaucheniines and other more derived merycoidodontids. |
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==Morphology== |
==Morphology== |
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A single specimen was examined by M. Mendoza for [[body mass]] and estimated to have a weight of 87.9 kg (193.7 lbs). <ref>M. Mendoza, C. M. Janis, and P. Palmqvist. 2006. Estimating the body mass of extinct ungulates: a study on the use of multiple regression. Journal of Zoology</ref> |
A single specimen was examined by M. Mendoza for [[body mass]] and estimated to have a weight of 87.9 kg (193.7 lbs). <ref>M. Mendoza, C. M. Janis, and P. Palmqvist. 2006. Estimating the body mass of extinct ungulates: a study on the use of multiple regression. Journal of Zoology</ref> |
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Revision as of 22:30, 1 June 2016
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Aclistomycter is an extinct genus of oreodont during the early Chadronian subepoch (42—39.9 mya) existing for approximately 2.1 million years.[2]
Aclistomycter was a very small herbivorous artiodactyl with a short face, small, but tusk-like canine teeth. The type specimen (TMM 41213-1) consists of a skull and jaws and two other specimens are referred to it: TMM 41216-11, skull with C-M^3; TMM 41211-9, skull fragment with M^1-M^3.
Taxonomy
Aclistomycter was named and assigned to Merycoidodontidae and the Merycoidodontinae by Wilson (1971). But Lander (1998) erected a new subfamily for it, the Aclistomycterinae. [3][4] Wilson recognized it was more primitive than Leptauchenia and Lander placed it as more derived than the bathygenines but basal to leptaucheniines and other more derived merycoidodontids.
Morphology
A single specimen was examined by M. Mendoza for body mass and estimated to have a weight of 87.9 kg (193.7 lbs). [5]
Resources
- ^ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 270. ISBN 1-84028-152-9.
- ^ PaleoBiology Database: Aclistomycter, basic info from the Chambers Tuff Formation near Adobe Springs in Presidio County, Texas.
- ^ J. A. Wilson. 1971. Early Tertiary vertebrate faunas, Vieja Group. Trans-Pecos Texas: Agriochoeridae and Merycoidodontidae. Texas Memorial Museum Bulletin
- ^ B. Lander. 1998. Oreodontoidea. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary mammals of North America 402-425
- ^ M. Mendoza, C. M. Janis, and P. Palmqvist. 2006. Estimating the body mass of extinct ungulates: a study on the use of multiple regression. Journal of Zoology