Ctenacodon

Ctenacodon is a genus of extinct mammal that lived in what is now North America during the Upper Jurassic period. It's a member of the family Allodontidae within the order Multituberculata. Ctenacodon, also known as Allodon (Marsh 1881), was named by Othniel Charles Marsh in 1879. At least three species are currently recognized.

Ctenacodon Temporal range: Late Jurassic
Lower jaws
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Multituberculata
Family:	†Allodontidae
Genus:	†Ctenacodon Marsh, 1879
Species
†C. laticeps (Marsh, 1881) †C. scindens Simpson, 1928 †C. serratus Marsh, 1879 (type)

Present in stratigraphic zone 5.[1] Remains possibly referrable to Ctenacodon have been recovered from stratigraphic zone 2.[1]

Species

The species Ctenacodon laticeps was named by Marsh in 1881 and Simpson G.G. in 1927. It has also been known as Allodon laticeps (Marsh 1881). Remains were found in the Upper Jurassic strata of the Morrison Formation in Wyoming (United States). The holotype, collected by Reed W.H. in 1880, is in the Peabody Museum of Natural History at Yale University.

The species Ctenacodon scindens was named by Simpson G.G. in 1928. Remains were found in Jurassic strata of the Morrison Formation of Wyoming. This species was originally assigned to C. serratus.

The species Ctenacodon serratus, also named by Marsh in 1879, is also known from the Morrison Formation.

References

• Simpson (1927), "Mesozoic Mammalia. VII. Taxonomy of Morrison multituberculates". Am. J. Sci. (5) xiv, p. 36-38.
• Kielan-Jaworowska Z. and Hurum J.H. (2001), "Phylogeny and Systematics of multituberculate mammals". Paleontology 44, p. 389-429.
• Marsh (1879), "Notice of new Jurassic mammals". Am. J. Sci., 3pp., xviii.

1. Foster, J. (2007). "Appendix." Jurassic West: The Dinosaurs of the Morrison Formation and Their World. Indiana University Press. pp. 327-329.