Known only from skull and mandible remains, Coquenia may have been a heavily built animal, about the size of a sheep. This animal dentition was low-crowned (brachydont), and the incisors resembled canines, with labial and lingual cingulum. The second upper incisor was more developed than the two others, a typical characteristic of the Leontiniidae, while the upper canines had a rotated crown, with labial and lingual cingulum. The four premolars had an anterolingual cingulum with a small basin located directly in front of the protocone. The premolars progressively increased in size towards the back of the jaw. The upper molars had a labial cingulum, and a posterior dimple, like the lower molars. The third upper molar was wider at the base of its lingual side.
Classificationedit
Coquenia is a basal member of the family Leontiniidae, a group of toxodontNotoungulates that appeared during the Eocene and survived until the Miocene, with a robust body and massive legs. Coquenia was one of the earliest members of the family, along with its relative Martinmiguelia.
Coquenia bondi was first described in 2008, based on fossil remains from the Pampa Grande locality of the Lumbrera Formation, in the Salta Province of Argentina.
Bibliographyedit
M. V. Deraco, J. E. Powell, and G. Lopez. 2008. Primer leontínido (Mammalia, Notoungulata) de la Formación Lumbrera (Subgrupo Santa Bárbara, Grupo Salta-Paleógeno) del noroeste argentino. Ameghiniana 45(1):83-91
J. E. Powell, M. J. Babot, D. A. García López, M. V. Deraco, and C. Herrera. 2011. Eocene vertebrates of northwest Argentina: annotated list. In J. Salfity, R. A. Marquillas (eds.), Cenozoic Geology of the Central Andes of Argentina 349–370
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coquenia, extinct, genus, notoungulate, belonging, family, leontiniidae, lived, during, middle, eocene, what, today, argentina, temporal, range, early, eocene, preꞒ, scientific, classificationdomain, eukaryotakingdom, animaliaphylum, chordataclass, mammaliaord. Coquenia is an extinct genus of Notoungulate belonging to the family Leontiniidae It lived during the Middle Eocene in what is today Argentina CoqueniaTemporal range Early Eocene 45 40 Ma PreꞒ Ꞓ O S D C P T J K Pg N Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass MammaliaOrder NotoungulataFamily LeontiniidaeGenus CoqueniaDeraco Powell amp Lopez 2008Species C bondiBinomial name Coquenia bondiDeraco Powell amp Lopez 2008Description editKnown only from skull and mandible remains Coquenia may have been a heavily built animal about the size of a sheep This animal dentition was low crowned brachydont and the incisors resembled canines with labial and lingual cingulum The second upper incisor was more developed than the two others a typical characteristic of the Leontiniidae while the upper canines had a rotated crown with labial and lingual cingulum The four premolars had an anterolingual cingulum with a small basin located directly in front of the protocone The premolars progressively increased in size towards the back of the jaw The upper molars had a labial cingulum and a posterior dimple like the lower molars The third upper molar was wider at the base of its lingual side Classification editCoquenia is a basal member of the family Leontiniidae a group of toxodont Notoungulates that appeared during the Eocene and survived until the Miocene with a robust body and massive legs Coquenia was one of the earliest members of the family along with its relative Martinmiguelia Coquenia bondi was first described in 2008 based on fossil remains from the Pampa Grande locality of the Lumbrera Formation in the Salta Province of Argentina Bibliography editM V Deraco J E Powell and G Lopez 2008 Primer leontinido Mammalia Notoungulata de la Formacion Lumbrera Subgrupo Santa Barbara Grupo Salta Paleogeno del noroeste argentino Ameghiniana 45 1 83 91 J E Powell M J Babot D A Garcia Lopez M V Deraco and C Herrera 2011 Eocene vertebrates of northwest Argentina annotated list In J Salfity R A Marquillas eds Cenozoic Geology of the Central Andes of Argentina 349 370 nbsp This notoungulate related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Coquenia amp oldid 1186539972, wikipedia, wiki, book, books, library,
