Herpetotherium


Herpetotherium is an extinct genus of metatherian mammal.

Herpetotherium fugax
Restoration

Herpetotherium
Temporal range: Early EoceneEarly Miocene
H. huntii
Scientific classification
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Herpetotherium

Cope, 1873
Type species
H. fugax
Species

H. fugax
H. huntii
H. knighti
H. merriami
H. tabrumi
H. valens
H. youngi

Fossils have been found in California, Oregon, Texas, Florida, Montana, Wyoming, Colorado, North and South Dakota, Nebraska, and Saskatchewan.[1] The oldest species, H. knighti, is dated to around 50.3 mya,[2] and the most recent, an unnamed species, may be as recent as 15.97 mya.[1] A morphological analysis of marsupials and basal metatherians conducted in 2007 found Herpetotherium to be the sister group to extant marsupials.[3]

Species

  • H. fugax (syn. Didelphys pygmaea, H. scalare, H. tricuspis, Peratherium fugax) (type)
  • H. huntii
  • H. knighti (syn. Centracodon delicatus, Entomacodon minutus, Peratherium morrisi)
  • H. merriami
  • H. valens (syn. Peratherium donahoei)
  • H. youngi (syn. Peratherium spindleri)

References

  1. "Taxonomic occurrences of Herpetotherium recorded in the Paleobiology Database". Retrieved 5 December 2013.
  2. "Taxonomic occurrences of Herpetotherium knighti recorded in the Paleobiology Database". Retrieved 5 December 2013.
  3. Sánchez-Villagra, Marcelo; Ladevèze, Sandrine; Horovitz, Inés; Argot, Christine; Hooker, Jeremy J.; Macrini, Thomas E.; Martin, Thomas; Moore-Fay, Scott; de Muizon, Christian; Schmelzle, Thomas; Asher, Robert J. (2007). "Exceptionally preserved North American Paleogene metatherians: adaptations and discovery of a major gap in the opossum fossil record". Biology Letters. 3 (3): 318–322. doi:10.1098/rsbl.2007.0090. PMC 2390683. PMID 17426007.