Genus
Valid Extinct

Hastanectes

Benson et al. 2013

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.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
6
Group
Sauroptérygiens
Carnivore aquatic, depth=surface Marine
Hastanectes
click to enlarge
Life reconstruction of Hastanectes valdensis © Connor Ashbridge · CC BY-SA 4.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Sauropterygia Suborder
›
Plesiosauria Order
›
Plesiosauroidea Superfamily
›
Leptocleidia Unranked clade
›
Leptocleididae Family
›
Hastanectes Genus
Fossil sites 6 geolocated sites
Distribution
Top countries
🇬🇧 United Kingdom
5
🇩🇪 Germany
1
Geological formations
Wadhurst Clay
5
Bückeberg
1
Temporal distribution
Valanginian (137.05–132.6 Ma)
5
Berriasian (143.1–137.05 Ma)
1
Species (1)
Hastanectes valdensis 139 Ma
Images 1
Bibliography
Original description
R. B. J. Benson, H. F. Ketchum, and D. Naish, L. E. Turner. 2013. 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 ↗
Bibliography (3)
H. F. Ketchum. 2011. Marine reptiles. Palaeontological Association Field Guide to Fossils 14:285-294
E. Koken. 1905. Neue Plesiosaurierreste aus dem norddeutschen Wealden. Centralblatt für Mineralogie, Geologie und Paläontologie 6:681-693
R. Lydekker. 1889. Catalogue of the Fossil Reptilia and Amphibia, Part II. Containing the orders Ichthyopterygia and Sauropterygia DOI ↗