Genus
Valid Extinct

Cetarthrosaurus

Seeley 1873

Cetarthrosaurus is an extinct genus of ichthyosaur known from the eastern United Kingdom. It was collected from the Cambridge Greensand Formation, dating to late Albian or early Cenomanian stage, of the Early Cretaceous-Late Cretaceous boundary. Cetarthrosaurus was first named by Harry G. Seeley in 1873 and the type species is Cetarthrosaurus walkeri.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Ichtyosaures
Carnivore nektonic Marine
Cetarthrosaurus
click to enlarge
Cetarthrosaurus walkeri, propodials. A–F: Holotype (CAMSM B58069), in proximal (A), distal (B), dorsal (C), anterior (D), posterior (E), and ventral (F) views. G–L: referred specimen (CAMSM X50170), in proximal (G), distal (H), dorsal (I), anterior (J), posterior (K), and ventral (L) views. Note the high aspect ratio, the rounded capitulum disconnected from the shaft trochanters, and the high and lamellar dorsal trochanter. Abbreviations: AAE: anterior accessory epipodial element; Fi: fibula; Ra: radius; Ti: tibia; Ul: ulna. © Valentin Fischer, Nathalie Bardet, Myette Guiomar, Pascal Godefroit · CC BY 2.5 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Ichthyosauria Unranked clade
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Cetarthrosaurus Genus
Fossil sites 1 geolocated sites
Distribution
Top countries
🇬🇧 United Kingdom
1
Geological formations
West Melbury Marly Chalk
1
Temporal distribution
Albian (113.2–100.5 Ma)
1
Species (1)
Cetarthrosaurus walkeri 106 Ma
Images 1
Bibliography
Original description
H. G. Seeley. 1873. On Cetarthrosaurus walkeri (Seeley), an ichthyosaurian from the Cambridge Upper Greensand. Quarterly Journal of the Geological Society of Lodon 29:505-507 DOI ↗
Bibliography (1)
V. Fischer, N. Bardet, and M. Guiomar, P. Godefroit. 2014. High diversity in Cretaceous ichthyosaurs from Europe prior to their extinction. PLoS ONE 9(1):e84709 DOI ↗