Psalodon

Psalodon is an extinct North American mammal that lived during the Upper Jurassic period. It's a member of the family Allodontidae within the order Multituberculata. Psalodon was named by Simpson in 1926. There are perhaps three species.

Genus: Psalodon Simpson GG, 1926
Aka: Allodon ('different tooth'), Ctenacodon ('comb tooth')

Species: Psalodon fortis (Marsh OC, 1887) Simpson GG, 1927
Aka: Allodon fortis Marsh, 1887
Place: Morrison Formation, Wyoming
Country: USA
Age: Upper Jurassic
Remarks: The holotype is at the Peabody Museum[?], Yale.
References: Simpson (1927), Mesozoic Mammalia. VII. Taxonomy of Morrison multituberculates. Am. J. Sci. (5) xiv: 36-38.
Marsh (1887), American Jurassic mammals. Am. J. Sci. (3) xxxiii: p.326-348.

Species: ?Psalodon marshi Simpson GG, 1929
Place: Morrison Formation, Wyoming
Country: USA
Age: Upper Jurassic
Remarks: Several Peabody specimens of a possible P. species.

Species: Psalodon portens (Marsh OC, 1887) Simpson GG, 1927
Aka: Ctenacodon portens Marsh OC, 1887
Place: Morrison Formation, Wyoming
Country: USA
Age: Upper Jurassic
Remarks: A further Yale holotype.
References: Simpson (1927), Mesozoic Mammalia. VII. Taxonomy of Morrison multituberculates. Am. J. Sci. (5) xiv: p.36-38.
Marsh (1887), American Jurassic mammals. Am. J. Sci. (3) xxxiii: p.326-348.

Page references: Kielan-Jaworowska Z & Hurum JH (2001), Phylogeny and Systematics of multituberculate mammals. Paleontology 44, p.389-429.

(This information has been derived from [1] (http://home.arcor.de/ktdykes/plagiau.htm) MESOZOIC MAMMALS; Basal Multituberculata, an internet directory. As that's my webpage, there are no issues of copyright. Trevor Dykes)