Paralligator

Paralligator
Temporal range: Late Cretaceous,
~96–70 Ma
P. gradilifrons and P. major skulls from the Bayan Shireh Formation
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauria
Clade: Pseudosuchia
Clade: Crocodylomorpha
Clade: Crocodyliformes
Clade: Neosuchia
Family: Paralligatoridae
Genus: Paralligator
Type species
Paralligator gradilifrons
Konzhukova, 1954
Other species
  • P. ancestralis Efimov, 1981
  • P. major Efimov, 1981
Synonyms
  • Shamosuchus tersus
    Efimov, 1983
  • Shamosuchus ulanicus
    Efimov, 1983
  • Shamosuchus ulgicus
    Efimov, 1981

Paralligator is an extinct genus of neosuchian crocodylomorph that lived during the Late Cretaceous (Cenomanian-Maastrichtian) period in what is now the Bayan Shireh and Nemegt formations of Mongolia, approximately 96 million to 70 million years ago. P. gradilifrons reached up to 4 m (13 ft) in length.

Taxonomy

Life restoration of P. gradilifrons

Two species are recognized:

  • Paralligator gradilifrons Konzhukova, 1954
  • Paralligator major Efimov, 1981

Misassigned species

"Paralligator" sungaricus, described from the Early Cretaceous Nenjiang Formation of Jilin Province, China, is based on postcranial remains consisting of a few presacral vertebrae, dorsal osteoderms, a partial left femur, and the proximal part of a left tibia and fibula. However, the type material is too fragmentary to be considered diagnostic, and the species is a nomen dubium. Turner (2015) also referred P. ancestralis a junior subjective synonym of P. gradilifrons.



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