Pucadelphys

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Pucadelphys
Temporal range: Paleocene
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Marsupialiformes
Genus: Pucadelphys
Marshall & de Muizon, 1988
Type species
Pucadelphys andinus
Marshall & de Muizon, 1988

Pucadelphys is an extinct genus of non-marsupial metatherian species.[1][2][3][4] The genus contains a single species, P. andinus. Fossils of Pucadelphys have been found at Tiupampa in Bolivia.

Pucadelphys is small and likely to have eaten insects. It had a long tail, although incomplete on the best preserved fossils. It is possible that the tail was longer than (or at least as long as) its body. 17 vertebrae were preserved, and its estimated that there was 5 to 10 additional vertebrae originally. It is regarded as partially arboreal, and partially terrestrial.

A 2016 phylogenetic analysis recovered Pucadelphys as a member of a metatherian clade including sparassodonts and other south american taxa, but not marsupials (which are instead closer to Cretaceous North American species). The phylogenetic tree from the 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[edit]

  1. ^ Guillermo W. Rougier, John R. Wible and Michael J. Novacek. First Implications of Deltatheridium specimens for early marsupial history, Nature 396, 459-463(3 December 1998)
  2. ^ S. Bi, X. Jin, S. Li and T. Du. 2015. A new Cretaceous metatherian mammal from Henan, China. PeerJ 3:e896
  3. ^ Guillermo Rougier, New specimen of Deltatheroides cretacicus (Metatheria, Deltatheroida) from the Late Cretaceous of Mongolia, BULLETIN OF CARNEGIE MUSEUM OF NATURAL HISTORY 36(DEC 2004):245-266 · SEPTEMBER 2009
  4. ^ 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.
  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. doi:10.1038/ncomms13734. 
  • Brands, S.J. (comp.) 1989-2005. Systema Naturae 2000. The Taxonomicon. Universal Taxonomic Services, Amsterdam, Holanda.
  • McKenna, M.C., y Bell, S.K. (1997), Classification of Mammals Above the Species Level., Columbia University Press, New York. 0-231-11013-8.
  • Suárez Soruco, R. (2007) Bolivia y su Paleodiversidad Cuadernos del Museo Geominero, nº 8. Instituto Geológico y Minero de España, Madrid. ISBN 978-84-7840-707-1