Alligator olseni

Olsen's alligator
Temporal range: Early Miocene 20.4–16 Ma[1]
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Forelimbs of Alligator olseni
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauromorpha
Clade: Archosauriformes
Order: Crocodilia
Family: Alligatoridae
Subfamily: Alligatorinae
Genus: Alligator
Species:
†A. olseni
Binomial name
†Alligator olseni
White, 1942

Alligator olseni (common name Olsen's Alligator, named after Russel Olsen) is an extinct species of alligator. They lived in the Early Miocene period, around 20.4–15.97 million years ago and possibly earlier.[2] Their range was principally in what is now known as Florida, United States, and possibly extending into southeastern Texas.[3][4] It is a small alligator with an estimated body length of 2.6 metres (8.5 ft).[5]

  1. ^ Rio, Jonathan P.; Mannion, Philip D. (6 September 2021). "Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem". PeerJ. 9: e12094. doi:10.7717/peerj.12094. PMC 8428266. PMID 34567843.
  2. ^ T. E. White. 1942. A new alligator from the Miocene of Florida. Copeia 1942(1):3-7
  3. ^ "Alligator olseni". Florida Museum of Natural History. Retrieved 18 June 2016.
  4. ^ "Alligator olseni". Fossilworks. Retrieved 17 December 2021.
  5. ^ Ikejiri, T. (2010). Morphology of the Neurocentral Junction during Postnatal Growth of Alligator (Reptilia, Crocodylia) (PhD thesis). University of Michigan.