Didolodus

Didolodus is an extinct genus of mammals from Middle Eocene Argentina. It is an ungulate mammal of uncertain affinities, possibly related to Litopterna, though this is uncertain due to the lack of reliable post-cranial remains, and for now remains Meridiungulata incertae sedis.[1] Its remains were found in the Sarmiento Formation of Patagonia.[2]

Didolodus
Temporal range: Mid Eocene (Divisaderan)
~40.4–37.2 Ma
Scientific classification
Kingdom:
Phylum:
Class:
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Genus:
Didolodus

Species
  • D. latigonus
  • D. magnus
  • D. minor
  • D. multicuspis (type)
Synonyms
  • Cephanodus Ameghino 1902
  • Lonchoconus Ameghino 1901
  • Nephacodus Ameghino 1902

Didolodus probably was a quick-footed creature which probably lived like early ungulates such as Propalaeotherium, based on its highly similar teeth. It was around 60 centimetres (2.0 ft) in length, with short limbs and a long tail.[3]

Phylogeny

Cladogram after Gelfo and Sigé, 2011:[4]

Protungulatum

Phenacodus

Kollpaniinae

Simoclaenus

Molinodus

Tiuclaenus

Andinodus

Pucanodus

Didolodontidae

Paulacoutoia protocenica

Lamegoia conodonta

Paulogervaisia inusta

Didolodus

Didolodus magnus

Didolodus multicuspis

Didolodus minor

Ernestokokenia

Ernestokokenia nitida

Ernestokokenia chaishoer

Ernestokokenia yirunhor

Escribania chubutensis

Escribania talonicuspis

Raulvaccia peligrensis

Umayodus raimondi

References

  1. Javier Nicolás, The alleged astragalar remains of Didolodus Ameghino, 1897 (Mammalia, Panameriungulata) and a critic of isolated bone association models, 2012
  2. Didolodus at Fossilworks.org
  3. Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 246. ISBN 1-84028-152-9.
  4. Javier N. Gelfo and Bernard Sigé (2011). "A new didolodontid mammal from the late Paleocene–earliest Eocene of Laguna Umayo, Peru" (PDF). Acta Palaeontologica Polonica. 56 (4): 665–678. doi:10.4202/app.2010.0067.


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