Paratrigodon
Paratrigodon | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | †Notoungulata |
Family: | †Toxodontidae |
Subfamily: | † |
Genus: | †Paratrigodon Cabrera & Kraglievich, 1931 |
Type species | |
Paratrigodon euguii (Cabrera and Kraglievich 1931)
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Paratrigodon is a genus of monotypic extinct notoungulate belonging to the subfamily , containing one species, P. euguii.[1] Like its relative genus Trigodon, it is known for the presence of a horn-like protuberance on its forehead. Fossils of Paratrigodon are known from the dating from the Chasicoan period, and teeth from the Laventan-aged of Bolivia were also associated with the genus, although considered too different from the type species to be assigned to it.[1]
Description[]
Paratrigodon was originally described in 1931 from remains coming from the Arroyo Chasicó Formation of Argentina. The holotype, MLP 12-1664 preserved the basis and the rostral part of the crania of an adult specimen, including the zygomatic bone. The skull was larger than Trigodon, with an enlarged rostral part and broad incisors, similar to Toxodon, and a strong protuberance on its forehead. [2] It is different from most toxodonts by having upper molars with a single non-bifurcating enamel fold and a smooth distolingual sulcus. Its species name honors Bernardo Eugui, a member of the paleontogy department of the La Plata Museum, who recovered most of the material assigned to the holotype.[1]
References[]
- ^ a b c Croft, D. A. (2007). "The Middle Miocene (Laventan) Quebrada Honda Fauna, Southern Bolivia and A Description of its Notoungulates". Palaeontology. 50 (1): 107–113. doi:10.1111/j.1475-4983.2006.00610.x.
- ^ Cabrera, A.; Kraglievich, J. L. (1931). "Diagnosis previas de los ungulados fósiles del arroyo Chasicó". Journal of Mammalian Evolution. 1: 107–113.
- Toxodonts
- Miocene mammals of South America
- Miocene genus first appearances
- Miocene extinctions
- Laventan
- Chasicoan
- Neogene Argentina
- Fossils of Argentina
- Neogene Bolivia
- Fossils of Bolivia
- Fossil taxa described in 1931
- Prehistoric placental genera