Thomasia (mammal)

Thomasia is a mammaliform from the Haramiyidae that is part of a lineage either unrelated to or a paraphyletic parent to multituberculates[1] from the Early Jurassic period.

Thomasia
Temporal range: Early Jurassic, 201–189 Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Haramiyida
Family: Haramiyidae
Genus: Thomasia
Poche, 1908
Type species
Thomasia antiqua
Pleininger, 1847
Species
  • T. antiqua Plieninger, 1847
  • T. hahni Butler & Macintyre, 1994
  • T. moorei Owen, 1871
  • T. woutersi Butler & Macintyre, 1994
Synonyms
  • Haramiya Simpson, 1947
  • Microcleptes Simpson, 1928
  • Microlestes Plieninger, 1847
  • Pleiningeria Krausse, 1919

Only Thomasia's teeth and skull have been found; judging from these it has been constructed as a 12 cm (5 in) creature with a resemblance to modern voles. It is presumed to have fed on the leaves of tree ferns, as it had broad cheek teeth for crushing tough vegetable food.[2][3]

References

  1. http://palaeos.com/vertebrates/mammaliformes/mammaliformes.html#Haramiyida Palaeos on Haramiya
  2. Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 199. ISBN 1-84028-152-9.
  3. Zofia Kielan-Jaworowska, Richard L. Cifelli, and Zhe-Xi Luo, Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure (New York: Columbia University Press, 2004), 249–260.
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