Article · Wikipedia archive · Last revised Jun 22, 2026

Hastanectes

Hastanectes is an extinct genus of a plesiosaurian with possible pliosaurid affinities known from the Early Cretaceous Wadhurst Clay Formation of the United Kingdom. It contains a single species, Hastanectes valdensis, which was originally thought to be a species of Cimoliasaurus.

Last revised
Jun 22, 2026
Read time
≈ 1 min
Length
140 w
Citations
1
Source
Hastanectes
Temporal range: Early Cretaceous,
Life restoration
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Order: Plesiosauria
Superfamily: Plesiosauroidea
Family: Leptocleididae
Genus: Hastanectes
Benson et al., 2012
Type species
Hastanectes valdensis
(Lydekker, 1889 [originally Cimoliasaurus valdensis])

Hastanectes is an extinct genus of a plesiosaurian with possible pliosaurid affinities known from the Early Cretaceous Wadhurst Clay Formation (Valanginian stage) of the United Kingdom. It contains a single species, Hastanectes valdensis, which was originally thought to be a species of Cimoliasaurus.1

See also

See also

References

References

  1. Benson, R. B. J.; Ketchum, H. F.; Naish, D.; Turner, L. E. (2012). "A new leptocleidid (Sauropterygia, Plesiosauria) from the Vectis Formation (Early Barremian–early Aptian; Early Cretaceous) of the Isle of Wight and the evolution of Leptocleididae, a controversial clade". Journal of Systematic Palaeontology. 11 (2): 233–250. doi:10.1080/14772019.2011.634444. S2CID 18562271.