| 词条 | Oreodontoides |
| 释义 |
| name = Oreodontoides | image = | image_caption = | fossil_range = Late Oligocene | taxon = Oreodontoides | authority = Thorpe (1923) | type_species = | subdivision_ranks = Species | subdivision = see text | synonyms = }}Oreodontoides is an extinct genus of oreodont of the family Merycoidodontidae, subfamily Merycoidodontinae, endemic to North America during the Late Oligocene-Early Miocene subepochs (24.8—20.6 mya), existing for approximately {{Mya|24.8-20.6|million years}}.[1] TaxonomyOreodontoides was named by Thorpe (1923) (named as subgenus of Eporeodon by Thorpe in 1921) and raised to genus level. It was synonymized subjectively with Merychyus by Loomis in 1924 and assigned to Merycoidodontidae by Thorpe in 1923 and 1937, (1923), by Schultz and Falkenbach (1947) and Lander (1998).[2][3]MorphologyA single specimen was examined by M. Mendoza for body mass and was estimated to have a weight of 34.9 kg (76.9 lbs).[4] Fossil distributionFossils have been uncovered throughout the western U.S. including Wheeler and Grant County, Oregon, Laramie County, Wyoming, Washabaugh County, South Dakota. SpeciesOreodontoides oregonensis (synonymous with Desmatochoerus anthyonyi, Merychyus curtus). References1. ^PaleoBiology Database: Oreodontoides, basic info {{Taxonbar|from=Q7101595}}{{paleo-eventoedungulate-stub}}2. ^F. B. Loomis. 1920. American Journal of Science 3. ^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 4. ^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 6 : Oreodonts|Prehistoric mammals of North America|Oligocene even-toed ungulates|Miocene even-toed ungulates|Aquitanian genus extinctions|Chattian genus first appearances |
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