A new genus of triconodont mammals from the Early Cretaceous of Western Siberia
| Autor: | Alexander O. Averianov, E. N. Maschenko, Alexey V. Lopatin |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Mammals
Paraphyly General Immunology and Microbiology biology Fossils Zoology General Medicine biology.organism_classification General Biochemistry Genetics and Molecular Biology Cretaceous Infraclass Siberia Amphilestidae Taxon Species Specificity Triconodontidae Animals Mammal Eutriconodonta General Agricultural and Biological Sciences Tooth |
| Zdroj: | Doklady Biological Sciences. 433:282-285 |
| ISSN: | 1608-3105 0012-4966 |
| Popis: | were excludedfrom this group, the concept of the taxon Eutriconodonta [1], which corresponds to the infraclass Triconodonta sensu stricto [2], was established. The heterogeneity of this taxon is evident from some characters of this group, including the familiesAmphilestidae and Gobiconodontidae (Repenomamidae) [3, 4]. Phylogenetic analysis corroborated thatAmphilestidae and Gobiconodontidae are closer toancestors of therian mammals than Triconodontidae[5] and suggested the paraphyletic origin of Amphilestidae [5, 6], which is regarded as a key group for theunderstanding of dental evolution of Mesozoic mammals. Therefore, Mesozoic mammal groups with tricuspid teeth are frequently combined under the informal name “triconodont mammals” [5–7].In the present study, a new triconodont mammalfrom the Early Cretaceous Shestakovo 1 locality inWestern Siberia is described. The material was collected by E.N. Maschenko in 2009; it is housed in theBorissiak Paleontological Institute of the RussianAcademy of Sciences, Moscow (PIN). |
| Databáze: | OpenAIRE |
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