Apractocleidus teretipes

Post author:Adam S. Smith
Post published:06/06/2026
Post category:Cryptoclididae Plesiosauria Plesiosauroidea Species page

Anguanax zignoi

Post author:Adam S. Smith
Post published:22/03/2024
Post category:Species page

Anguanax

Post author:Adam S. Smith
Post published:18/10/2020
Post category:Genus page Plesiosauria Pliosauridae Pliosauroidea Thalassophonea

The skull of the Anguanax type specimen (from Cau & Fanti 2014)

Anguanax is the first articulated plesiosaur ever found in Italy. It is a basal thalassophonean pliosaur from the Late Jurassic (middle Oxfordian). The type and only known specimen (MPPL 18797) of Anguanax was originally described as an indeterminate pliosaurid (Cau and Fanti 2014), but was subsequently named after reanalysis by the same…

Apractocleidus

Post author:Adam S. Smith
Post published:22/07/2018
Post category:Cryptoclididae Genus page Plesiosauria Plesiosauroidea

Cryptoclidus (the type specimen of 'Apractocleidus', V.1091, with the tail of V.1104 and a replica head) in the Hunterian Museum, Glasgow, Scotland. Photo by Adam S. Smith. 2007.

The genus and species 'Apractocleidus teretipes' was erected by Smellie (1916). Smellie (1915) provided a preliminary account of the specimen before he named it. The specimen is now regarded as an old-adult individual of Cryptoclidus. The taxon 'Apractocleidus' is therefore considered a junior synonym of Cryptoclidus. The specimen was collected by Alfred…