Alligator prenasalis Loomis 1904 (alligator)

Reptilia - Crocodylia - Alligatoridae

Alternative combinations: Caimanoidea prenasalis, Crocodilus prenasalis

Synonyms: Alligator riggsi Patterson 1931, Alligator vischeri Mehl 1916, Allognathosuchus riggsi Patterson 1931, Caimanoidea visheri Mehl 1916

Full reference: F. B. Loomis. 1904. Two new river reptiles from the Titanothere beds. American Journal of Science 18:427-432

Belongs to Alligator according to J. P. Rio and P. D. Mannion 2021

See also Barbour 1926, Bjork 1967, Brochu 1999, Gilmore 1946, Hay 1930, Lambe 1908, Loomis 1904, Mehl 1916, Patterson 1931, Schmidt 1941 and Snyder 2007

Sister taxa: Alligator darwini, Alligator gaudryi, Alligator hailensis, Alligator hantoniensis, Alligator heterodon, Alligator luicus, Alligator mcgrewi, Alligator mefferdi, Alligator mississippiensis, Alligator munensis, Alligator olseni, Alligator sinensis, Alligator thomsoni

Type specimens:

  • Alligator prenasalis: Its type locality is Indian Draw (SDSM Titanothere Beds), which is in a Chadronian fluvial-lacustrine siliciclastic in the Chadron Formation of South Dakota
  • Allognathosuchus riggsi: Field Museum P 12141, a mandible (left mandible). Its type locality is Phinney Springs, which is in a Chadronian fluvial-lacustrine siliciclastic in the Chadron Formation of South Dakota.
  • Caimanoidea visheri: University of South Dakota 1,044, a partial skeleton (goodly portion of a skull, a nearly complete mandible, two femora and other limb bones, a nearly complete series of vertebrae, many dorsal scutes, and numerous ). Its type locality is Caimanoidea visheri type locality, which is in a Chadronian fluvial-lacustrine siliciclastic in the Chadron Formation of South Dakota.

Ecology: carnivore

Distribution:

• Eocene of United States (8: South Dakota collections)

Total: 8 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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