Neosteneosaurus

Neosteneosaurus
Temporal range: Callovian-Oxfordian
~
Holotype and assigned specimen
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauria
Clade: Pseudosuchia
Clade: Crocodylomorpha
Suborder: Thalattosuchia
Family: Machimosauridae
Subfamily: Machimosaurinae
Genus: Neosteneosaurus
Johnson et al., 2020
Species:
N. edwardsi
Binomial name
Neosteneosaurus edwardsi
(Eudes-Deslongchamps, 1868)
Synonyms
  • Steneosaurus dubroviensis
  • Steneosaurus edwardsi Eudes-Deslongchamps, 1868
  • Steneosaurus hulkei Andrews, 1913

Neosteneosaurus is a genus of machimosaurid, known from the Middle Jurassic Oxford Clay of the UK, and Marnes de Dives, France. The type species, N. edwardsi, was originally named as a species of Steneosaurus in 1868, but was moved to its own genus in 2020. Steneosaurus durobrivensis and Steneosaurus hulkei are considered junior synonyms.

In 2015, it was estimated at more than 7 m (23 ft) in length. In 2016, this estimate was revised down to 6.6 m (22 ft), but even with such measurement, this animal remains to be the largest known Middle Jurassic crocodylomorph.