Thereuodon

{{Short description|Extinct family of mammals}}

{{Automatic taxobox

|taxon=Thereuodon

|fossil_range={{fossilrange|Berriasian}}

|image=

|parent_authority=Sigogneau-Russel & Ensom, 1998

|authority=Sigogneau-Russell, 1989

|subdivision_ranks=Species

|subdivision=

• 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.{{cite journal|first1=Ronan|last1=Allain|first2=Romain|last2=Vullo|first3=Lee|last3=Rozada|first4=Jérémy |last4=Anquetin|first5=Renaud|last5=Bourgeais|first6=Jean|last6=Goedert|first7=Maxime|last7=Lasseron|first8=Jeremy Emiland|last8=Martin|first9=Adán|last9=Pérez-García|first10=Claire|last10=Peyre de Fabrégues|first11=Rafael|last11=Royo-Torres|first12=Dominique|last12=Augier|first13=Gilles|last13=Bailly|first14=Lilian|last14=Cazes|first15=Yohan|last15=Despres|first16=Auréliane|last16=Gailliégue|first17=Bernard|last17=Gomez|first18=Florent|last18=Goussard|first19=Thierry|last19=Lenglet|first20=Renaud|last20=Vacant|last21=Mazan|first22=Jean-François|last22=Tournepiche|display-authors=3|year=2022|title=Vertebrate paleobiodiversity of the Early Cretaceous (Berriasian) Angeac-Charente Lagerstätte (southwestern France): implications for continental faunal turnover at the J/K boundary|journal=Geodiversitas |volume=44 |issue=25 |pages=683–752|doi=10.5252/geodiversitas2022v44a25 |s2cid=251106920 |url=https://hal-insu.archives-ouvertes.fr/insu-03752198/file/g2022v44a25-pdfa.pdf|doi-access=free}} 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.{{cite journal|last1=Sigogneau-Russell|first1=D.|last2=Ensom|first2=P.C.|year=1998|title=Thereuodon (Theria, Symmetrodonta) from the Lower Cretaceous of North Africa and Europe, and a brief review of symmetrodonts|journal=Cretaceous Research|volume=19|issue=3–4|pages=445–470|doi=10.1006/cres.1998.0115|bibcode=1998CrRes..19..445S }} A tooth referred to T. cf. taraktes is known from the Berriasian aged Angeac-Charente bonebed of France.