Bryophytes (Mosses, Liverworts, and Hornworts) • Earth.com

Desmatodon Moss

(Desmatodon)

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Description

Remains of Desmatodon have been found from the Red Knob Formation of Pennsylvania, the Sangre de Cristo Formation in Colorado, and the Cutler Formation of New Mexico. The genus is known mostly from teeth and portions of skulls. The cheek teeth are robust and spade-shaped with several cusps on their surfaces. The two species can be distinguished by the distribution of teeth in their jaws; D. hesperis has tightly packed teeth while D. hollandi has widely spaced teeth. In both species, the lower jaw is deep and possesses a ridge that may have aided in chewing plant material. Some specimens that are thought to belong to young individuals have fewer, more widely spaced teeth with no wear facets.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum: Bryophyta
Class: Bryopsida
Order:Pottiales
Family:Pottiaceae
Genus:Desmatodon
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