A New Primitive Species of the Flat-Headed PeccaryPlatygonus(Tayassuidae, Artiodactyla, Mammalia) From the Late Miocene of the High Plains
| Autor: | Jessica Grenader, Donald R. Prothero |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
0106 biological sciences
010506 paleontology Mandibular symphysis Pleistocene Paleontology Zygomatic process Biology Late Miocene biology.organism_classification 010603 evolutionary biology 01 natural sciences Platygonus medicine.anatomical_structure Cheek teeth medicine Mammal Keel (bird anatomy) 0105 earth and related environmental sciences |
| Zdroj: | Journal of Paleontology. 86:1021-1031 |
| ISSN: | 1937-2337 0022-3360 |
| Popis: | A new species of the Pliocene–Pleistocene flat-headed peccary,Platygonus pollenae, has been recovered latest Hemphillian (latest Miocene) localities from Nebraska, Kansas, Colorado, and Texas. It can be distinguished from other tayassuids by its distally rounded wing-like zygomatic process, and its subzygodont cheek teeth. In contrast to more derived species ofPlatygonus, it is much smaller in size, its molars are relatively more bunodont, the talon and talonid cusps are retained on the premolars of most individuals, and the mandibular symphysis lacks a median keel on the chin. In these characters, it is the earliest and the most primitive species ofPlatygonusknown. It is more primitive than the typical Blancan species, or any of the species from the Pleistocene, and demonstrates the origin of this important Pleistocene mammal in the latest Miocene. |
| Databáze: | OpenAIRE |
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