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,[1] but was moved to its own genus in 2020. Steneosaurus durobrivensis and Steneosaurus hulkei are considered junior synonyms.[2]
| Neosteneosaurus | |
|---|---|
 | |
| Holotype and assigned specimen | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Archosauria |
| Clade: | Pseudosuchia |
| Clade: | Crocodylomorpha |
| Clade: | Crocodyliformes |
| Suborder: | †Thalattosuchia |
| Family: | †Machimosauridae |
| Subfamily: | †Machimosaurinae |
| Genus: | †Neosteneosaurus Johnson et al., 2020 |
| Species: | †N. edwardsi |
| Binomial name | |
| †Neosteneosaurus edwardsi (Eudes-Deslongchamps, 1868) | |
| Synonyms | |
| |
In 2015, it was estimated at more than 7 m (23 ft) in length.[3] 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.[4]
References
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