| 词条 | Leptotragulus |
| 释义 |
| name = Leptotragulus | fossil_range = {{Fossil range|Eocene}} | image = | taxon = Leptotragulus | authority = Scott & Osborn, 1887 | subdivision_ranks = Species | subdivision =
|range_map = Leptotragulus range.png |range_map_caption = Range of Leptotragulus based on fossil record }}Leptotragulus is a small extinct genus of Artiodactyla, of the family Protoceratidae, endemic to North America from the Eocene epoch (Uintan to Chadronian stage) 40.2—33.9 Ma, existing for approximately {{Mya|40.2-33.9|million years}}.[1] TaxonomyLeptotragulus was named by Scott and Osborn (1887). It was assigned to Leptotragulinae by Matthew (1908); to Hypertragulidae by Peterson (1919); and to Protoceratidae by Scott and Osborn (1887), Carroll (1988), Prothero (1998) and Prothero and Ludtke (2007).[2][3][4]MorphologyLeptotragulus resembled deer. However they were more closely related to camelids. In addition to having horns in the more usual place, protoceratids had additional, rostral horns above the orbital cavity. Body massFour fossil specimens of Prosynthetoceras were measured by M. Mendoza, C. M. Janis, and P. Palmqvist for body mass.[5]
Fossil distributionFossils have been recovered from:
References1. ^PaleoBiology Database: Leptotragulus, basic info {{Taxonbar|from=Q6528587}}{{paleo-eventoedungulate-stub}}2. ^W. D. Matthew. 1908. Osteology of Blastomeryx and phylogeny of the American Cervidae. Bulletin of the American Museum of Natural History 24(27):535-562 3. ^O. A. Peterson. 1919. Annals of Carnegie Museum 12(2) 4. ^R. L. Carroll. 1988. Vertebrate Paleontology and Evolution. W. H. Freeman and Company, New York 1-698 5. ^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 270(1):90-101 6 : Protoceratids|Priabonian genus extinctions|Eocene even-toed ungulates|Prehistoric mammals of North America|Taxa named by Henry Fairfield Osborn|Fossil taxa described in 1887 |
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