Argillomys

Argillomys
Temporal range: Aptian
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Multituberculata
Genus: †Argillomys
Species:
†A. marylandensis
Binomial name
†Argillomys marylandensis
Cifelli et al., 2013

Argillomys is an extinct genus of multituberculate mammal that lived in Maryland during the Aptian stage of the Early Cretaceous epoch.[1]

Description

Argillomys marylandensis, the type and only species, is distinguished by its unique combination of morphological traits on its second molar that include a tooth enamel ornamentation consisting of ribs and grooves only, a cusp formula of 2:4, the presence of a distinct cusp on the anterobuccal ridge, the enlargement of the second cusp of the buccal row, and central position of ultimate cusp in the lingual row.[2]

References

  1. ^ "PBDB Taxon". Retrieved 4 January 2026.
  2. ^ Cifelli, Richard Lawrence; Gordon, Cynthia L.; Lipka, Thomas R. (18 April 2013). Scott, Craig S. (ed.). "New multituberculate mammal from the Early Cretaceous of eastern North America". Canadian Journal of Earth Sciences. 50 (3): 315–323. doi:10.1139/e2012-051. ISSN 0008-4077. Retrieved 4 January 2026 – via Canadian Science Publishing.
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