Cephalomys arcidens Ameghino 1897 (caviomorph)

Mammalia - Rodentia - Cephalomyidae

Synonyms: Asteromys annectens Ameghino 1902, Asteromys prospicuus Ameghino 1897, Cephalomys plexus Ameghino 1897, Cephalomys prorsus Ameghino 1902, Cephalomys prosus Ameghino 1902, Orchiomys prostans Ameghino 1897

Full reference: F. Ameghino. 1897. Mammiféres crétacés de l’Argentine (Deuxième contribution à la connaissance de la fauna mammalogique de couches à Pyrotherium) [Cretaceous mammals of Argentina (second contribution to the knowledge of the mammalian fauna of the Pyrotherium Beds)]. Boletin Instituto Geografico Argentino 18(4–9):406-521

Belongs to Cephalomys according to F. Busker et al. 2020

See also Ameghino 1897, Ameghino 1902, Loomis 1914 and Wood and Patterson 1959

Sister taxon: Cephalomys ceciae

Type specimens:

  • Cephalomys arcidens: MACN A 12112/52-88, a partial skull. Its type locality is Cabeza Blanca, which is in a Deseadan terrestrial shale/claystone in the Sarmiento Formation of Argentina.
  • Asteromys annectens: Its type locality is Cabeza Blanca, which is in a Deseadan terrestrial shale/claystone in the Sarmiento Formation of Argentina.
  • Asteromys prospicuus: Its type locality is Cabeza Blanca, which is in a Deseadan terrestrial shale/claystone in the Sarmiento Formation of Argentina.
  • Cephalomys plexus: Its type locality is Cabeza Blanca, which is in a Deseadan terrestrial shale/claystone in the Sarmiento Formation of Argentina.
  • Cephalomys prorsus: Its type locality is Cabeza Blanca, which is in a Deseadan terrestrial shale/claystone in the Sarmiento Formation of Argentina.
  • Orchiomys prostans: Its type locality is Cabeza Blanca, which is in a Deseadan terrestrial shale/claystone in the Sarmiento Formation of Argentina.

Ecology: ground dwelling herbivore

Distribution:

• Miocene of Argentina (1 collection)

• Deseadan of Argentina (3)

Total: 4 collections including 12 occurrences

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Specimen images are retrieved through the ePANDDA API.


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