Alphadon is an extinct genus of small, primitive mammal that was a member of the metatherians, a group of mammals that includes modern-day marsupials. Its fossils were first discovered and named by George Gaylord Simpson in 1929.[2]
^J. G. Eaton. 1993. Therian mammals from the Cenomanian (Upper Cretaceous) Dakota Formation, southwestern Utah. Journal of Vertebrate Paleontology 13(1):105-124
^ abHaaramo, Mikko (August 2003). "Alphadontidae". Mikko's Phylogeny Archive.
Alphadon is an extinct genus of small, primitive mammal that was a member of the metatherians, a group of mammals that includes modern-day marsupials....
and Neoplagiaulax. The metatherians are represented by the alphadontids Alphadon, Protalphodon, and Turgidodon, the pediomyids Pediomys, Protolambda, and...
possibly belonging to Troodon suggests it hunted early mammals such as Alphadon. In 2011, another derived troodontid, Linhevenator, was described from...
age. Many extinct metatherians once considered early opossums, such as Alphadon, Peradectes, Herpetotherium, and Pucadelphys, have since been recognized...
and the neoplagiaulacids Mesodma, and Neoplagiaulax. The alphadontids Alphadon, Protalphodon, and Turgidodon, pediomyids Pediomys, Protolambda, and Leptalestes...
the purported stagodontid Delphodon is probably a synonym of Pediomys or Alphadon. A 2016 phylogenetic analysis found that Didelphodon and other stagodontids...
Cretaceous, 99.6–66.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Reconstruction of Alphadon sp. Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum:...
mammals from Cedar Canyon, southwestern Utah, and a revision of Cenomanian Alphadon-like marsupials; pp. 97–110 in Albright, L.B.I. (ed.), Papers on Geology...
more difficult prey as the babyies are too large now. He chases after an Alphadon, but another Troodon grabs the fleeing mammal, and Patch is becoming impatient...
(1976). "Cretaceous mammals (Meniscoessus intermedius, new species, and Alphadon sp.) from the lowermost Oldman Formation, Alberta". Canadian Journal of...
choristoderes, trace fossils, and palynomorphs. Marsupial remains similar to Alphadon and Eodelphis have also been found here as well. Pterodactyloid tracks...
Mammals of the Maastrichtian Taxa Presence Location Description Images †Alphadon †Alphadon marshi Hell Creek Formation, Montana, USA New Mexico, USA Alberta...
Meniscoessus major Mesodma primaeva unnamed multituberculates Metatherians Alphadon halleyi Eodelphis browni E. cutleri 5 species of "Pediomys" Turgidodon...
Mammals of the Campanian Taxa Presence Location Description Images †Alphadon Late Cretaceous North America A marsupialiform metatherian. †Eodelphis A marsupialiform...
Formation Genus Species State Stratigraphic position Material Notes Images Alphadon A. marshi Montana North Dakota An alphadontid. genus of small, primitive...
studies group it with other northern non-marsupial metatherians such as Alphadon and Turgidodon. A 2016 phylogenetic analysis is shown below. Davis, B.M...
Global Information
