Hassiacosuchus

Hassiacosuchus
Temporal range: Eocene,
47.8–41.2 Ma
Fossil, State Museum of Natural History Karlsruhe
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Crocodilia
Family: Alligatoridae
Subfamily: Alligatorinae
Genus: Hassiacosuchus
Weitzel, 1935
Type species
Hassiacosuchus haupti
Weitzel, 1935

Hassiacosuchus is an extinct genus of small alligatorid from the early Eocene of Germany, found at the Messel pit. It was named in 1935 by K. Weitzel, and the type species is H. haupti. A second species, H. kayi, was named in 1941 by C.C. Mook for material from the Bridgerian (early Eocene) of Wyoming, but was reassigned to Procaimanoidea in 1967 by Wassersug and Hecht. Hassiacosuchus may be the same as Allognathosuchus; Christopher Brochu has recommended continuing to use Hassiacosuchus.

Specimen at the Natural History Museum of Basel

The cladogram below from the 2020 Cossette & Brochu study shows the placement of Hassiacosuchus within Alligatoridae:

Alligatoroidea

Leidyosuchus

Deinosuchus

Diplocynodon

Alligatoridae

Caimaninae (stem-based group)

Alligatorinae

Ceratosuchus

Hassiacosuchus

Navajosuchus

Allognathosuchus

Alligator mcgrewi

Alligator prenasalis

Wannaganosuchus

Arambourgia

Procaimanoidea

Alligator olseni

crown Alligatorinae

(stem-based group)
(crown group)
(stem-based group)



This page was last updated at 2023-12-22 07:37 UTC. Update now. View original page.

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