Thereuodon Temporal range:
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | †Symmetrodonta |
Family: | †Thereuodontidae Sigogneau-Russel & Ensom, 1998 |
Genus: | †Thereuodon Sigogneau-Russell, 1989 |
Species | |
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Thereuodon is a genus of extinct mammal known from the Early Cretaceous of southern England, Morocco and France.[1] The type species, named by Denise Sigogneau-Russell in 1989 for teeth from the earliest Cretaceous Ksar Metlili Formation of Morocco, is Thereuodon dahmani, while the referred species named by Sigogneau-Russell and Paul Ensom for teeth from the Lulworth Formation of England is Thereuodon taraktes. The two species are separated by a break in the cingulum in T. dahmani, a more obtuse medial crest in T. taraktes, a duller stylocone in T. taraktes, a "c" cuspule in T. dahmani, and a reduced facet A in T. taraktes. The genus Thereuodon is the only taxon in the symmetrodont family Thereuodontidae, which may be closely related to Spalacotheriidae.[2] A tooth referred to T. cf. taraktes is known from the Berriasian aged Angeac-Charente bonebed of France.[1]