Biology:Albertatherium

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Short description: Extinct genus of mammals

Albertatherium
Temporal range: Late Cretaceous, 86.3–83.5 Ma
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Family: Alphadontidae
Genus: Albertatherium
Fox, 1971
Type species
Albertatherium primus
Fox, 1971
Species
  • A. primus Fox 1971
  • A. secundus Johanson 1995

Albertatherium (meaning "beast of Alberta") is an extinct genus of alphadontid metatherians that lived during the Late Cretaceous of North America. The genus contains two species, Albertatherium primus (the type species), and Albertatherium secundus. Fossils have been found in the Eagle Formation of Montana and the Milk River Formation of Alberta.[1][2]

Taxonomy

Albertatherium is a member of the Alphadontidae, an extinct family of metatherians closely related to marsupials. Recent phylogenetic studies group it with other northern non-marsupial metatherians such as Alphadon and Turgidodon.[3][4] A 2016 phylogenetic analysis is shown below.[5]

Marsupialiformes

Gurlin Tsav skull

Borhyaenidae

Mayulestes

Jaskhadelphys

Andinodelphys

Pucadelphys

Asiatherium

Iugomortiferum

Kokopellia

Aenigmadelphys

Anchistodelphys

Glasbiidae

Glasbius

Pediomyidae

Pediomys

Stagodontidae

Pariadens

Eodelphis

Didelphodon

Alphadontidae

Turgidodon

Alphadon

Albertatherium

Marsupialia

References

  1. Davis, B.M.; Cifelli, R.L.; Cohen, J.E (2016). "First fossil mammals from the Upper Cretaceous Eagle Formation (Santonian, northern Montana, USA), and mammal diversity during the Aquilan North American land mammal age.". Palaeontologia Polonica 67: 101–126. https://www.researchgate.net/profile/Brian-Davis-4/publication/304495469_First_fossil_mammals_from_the_Upper_Cretaceous_Eagle_Formation_Santonian_northern_Montana_USA_and_mammal_diversity_during_the_Aquilan_North_American_Land_Mammal_Age/links/5771431708ae0b3a3b7d5cc1/First-fossil-mammals-from-the-Upper-Cretaceous-Eagle-Formation-Santonian-northern-Montana-USA-and-mammal-diversity-during-the-Aquilan-North-American-Land-Mammal-Age.pdf. 
  2. Johanson, Zerina (1995-02-15). "New information concerning the Late Cretaceous marsupial Albertatherium Fox, 1971". Journal of Vertebrate Paleontology 14 (4): 595–602. doi:10.1080/02724634.1995.10011581. ISSN 0272-4634. https://doi.org/10.1080/02724634.1995.10011581. 
  3. Guillermo W. Rougier; Brian M. Davis; Michael J. Novacek (2015). "A deltatheroidan mammal from the Upper Cretaceous Baynshiree Formation, eastern Mongolia". Cretaceous Research. 52, Part A: 167–177. doi:10.1016/j.cretres.2014.09.009.
  4. S. Bi, X. Jin, S. Li and T. Du. 2015. A new Cretaceous metatherian mammal from Henan, China. PeerJ 3:e896
  5. Wilson, G.P.; Ekdale, E.G.; Hoganson, J.W.; Calede, J.J.; Linden, A.V. (2016). "A large carnivorous mammal from the Late Cretaceous and the North American origin of marsupials". Nature Communications 7: 13734. doi:10.1038/ncomms13734. PMID 27929063. 

Wikidata ☰ Q3825052 entry