Diplacodon
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| Diplacodon | |
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| Head reconstruction of Diplacodon | |
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Perissodactyla |
| Family: | †Brontotheriidae |
| Genus: | †Diplacodon Marsh, 1875 |
| Species | |
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Diplacodon (Greek: "double" (diplos), "point" (aki), "teeth" (odontes)[1]) is a genus of prehistoric odd-toed ungulates in the family Brontotheriidae. One species, D. progressum, was later placed in the novel genus Pseudodiplacodon.[2]
Description
[edit | edit source]It was the size of a rhinoceros, with the last two upper premolars molar-like.[3] Compared to later White River brontotherids, Diplacodon had far more simple horns. Bearing developed canines and incisors, some propose that Diplacodon utilized their canines as weapons. The anterior teeth are adapted for browsing and cropping, contrasting later brontotherids who utilized their tongue and lips to grasp vegetation. The ulna is stout and the lower leg bones are not coossified. The forefoot bears 4 toes while the hind feet bear 3.[4]
Diplacodon, and similar early brontotherids like Protitanotherium, are among the best represented of all the Uinta Formation fauna. [4] A new species, D. gigan, was described by Matthew C. Mihlbachler in 2011, from the United States.[5]
References
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- ^ Matthew C. Mihlbachler (2011). "A new uintan horned brontothere from Wyoming and the evolution of canine size and sexual dimorphism in the Brontotheriidae (Perissodactyla: Mammalia)". Journal of Vertebrate Paleontology 31 (1): 202–214. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)..
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