Thereuodon

Thereuodon Temporal range: Berriasian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	† Symmetrodonta
Family:	† Thereuodontidae Sigogneau-Russel & Ensom, 1998
Genus:	† Thereuodon Sigogneau-Russell, 1989
Species
Thereuodon dahmani Sigogneau-Russell, 1989 (type) Thereuodon taraktes Sigogneau-Russell & Ensom, 1998

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]

References

1. Allain, Ronan; Vullo, Romain; Rozada, Lee; et al. (2022). "Vertebrate paleobiodiversity of the Early Cretaceous (Berriasian) Angeac-Charente Lagerstätte (southwestern France): implications for continental faunal turnover at the J/K boundary" (PDF). Geodiversitas. 44 (25): 683–752. doi: 10.5252/geodiversitas2022v44a25 . S2CID   251106920.
2. Sigogneau-Russell, D.; Ensom, P.C. (1998). "Thereuodon (Theria, Symmetrodonta) from the Lower Cretaceous of North Africa and Europe, and a brief review of symmetrodonts". Cretaceous Research. 19 (3–4): 445–470. Bibcode:1998CrRes..19..445S. doi:10.1006/cres.1998.0115.