Cryptoclididae

Cryptoclidids Temporal range: Middle Jurassic - Early Cretaceous,
File:Cryptoclidus eurymerus Tubingen.JPG
Skeleton of Cryptoclidus eurymerus at the Museum of Paleontology, Tuebingen
Scientific classification Edit this classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Superorder:	†Sauropterygia
Order:	†Plesiosauria
Superfamily:	†Plesiosauroidea
Clade:	†Cryptoclidia
Family:	†Cryptoclididae Williston, 1925
Genera
†Opallionectes? Colymbosaurinae †Abyssosaurus †Colymbosaurus †Djupedalia †Ophthalmothule †Pantosaurus †Spitrasaurus Muraenosaurinae †Muraenosaurus †Picrocleidus †Tricleidus? †Vinialesaurus Cryptoclidinae †Cryptoclidus †Kimmerosaurus †Tatenectes †Tricleidus?

File:Muraenosaurus l2.jpg

Life restoration of Muraenosaurus

Cryptoclididae is a family of medium-sized plesiosaurs that existed from the Middle Jurassic to the Early Cretaceous. They had long necks, broad and short skulls and densely packed teeth. They fed on small soft-bodied preys such as small fish and crustaceans. The earliest members of the family appeared during the early Bajocian, and they represented the dominant group of long-necked plesiosaurs during the latter half of the Jurassic.

Classification

In 2010, two supposed late Cretaceous members of the group were reclassified as other kinds of plesiosauroids. Kaiwhekea was reclassified to Leptocleididae, and Aristonectes was transferred to Elasmosauridae.

Cladogram based on Ketchum and Benson (2010):

Cryptoclididae	Muraenosaurus Tricleidus Cryptoclidus Kimmerosaurus

External links

• palaeos.com