Scalaridelphys

Scalaridelphys; Temporal range: Late Cretaceous, Turonian PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
(unranked):	Marsupialiformes
Order:	†Pediomyoidea
Family:	†Aquiladelphidae
Genus:	†Scalaridelphys; Cohen, Davis & Cifelli, 2021
Species
	†S. aquilana Cohen, Davis & Cifelli, 2020; †S. martini Cohen, Davis & Cifelli, 2020 (type species);
Synonyms
	Scalaria Cohen, Davis & Cifelli, 2020 (preoccupied);

Scalaridelphys (meaning "womb that resembles stairs" - in reference to the Grand Staircase-Escalante National Monument and the fact that it was related to extant marsupials) is an extinct genus of aquiladelphid pediomyoid mammal from the Late Cretaceous (Turonian)-aged Straight Cliffs Formation of Utah.^[1] Initially named as Scalaria in 2020,^[1] the genus name was changed to Scalaridelphys in 2021^[2] when the authors were told by B. Creisler that the name Scalaria was already in use for a now obsolete genus of gastropod named by Jean-Baptiste Lamarck in 1801.^[3] Two species of Scalaridelphys are known: the type species S. martini and S. aquilana.^[1]

References

^ ^a ^b ^c Joshua E. Cohen; Brian M. Davis; Richard L. Cifelli (2021). "Scalaridelphys Nom. Nov. A New Replacement Name for Scalaria Cohen et al., 2020 (Marsupialiformes, Aquiladelphidae)". Journal of Vertebrate Paleontology. Online edition: e1877721. doi:10.1080/02724634.2021.1877721.
^ Cohen, J. E.; Davis, B. M.; Cifelli, R. L. (2021). "Scalaridelphys Nom. Nov. A New Replacement Name for Scalaria Cohen et al., 2020 (Marsupialiformes, Aquiladelphidae)". Journal of Vertebrate Paleontology. Online edition: e1877721. doi:10.1080/02724634.2021.1877721.
^ Lamarck, J-B. (1801). Système des animaux sans vertèbres, ou tableau général des classes, des ordres et des genres de ces animaux; présentant leurs caractères essentiels et leur distribution, d'après la considération de leurs..., Paris, Detreville, VIII: 1–432.