Open main menu

Cryptoclidia

  (Redirected from Xenopsaria)

Cryptoclidia is a clade of plesiosaurs.

Cryptoclidia
Temporal range: Middle Jurassic-Late Cretaceous, 165–66 Ma
Thililua longicollis.jpg
Skeleton of Thililua longicollis, National Museum of Nature and Science
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Order: Plesiosauria
Superfamily: Plesiosauroidea
Clade: Cryptoclidia
Ketchum and Benson, 2010
Subgroups

Cryptoclidia was named and defined as a node clade in 2010 by Hilary Ketchum and Roger Benson: the group consisting of the last common ancestor of Cryptoclidus eurymerus and Polycotylus latipinnis; and all its descendants.[1]

The following cladogram follows an analysis by Benson & Druckenmiller (2014).[2]

Plesiosauroidea

Plesiosaurus

Eretmosaurus

Westphaliasaurus

Microcleididae

Plesiopterys

Cryptoclidia

Cryptoclididae

Xenopsaria

Elasmosauridae

Leptocleidia

Leptocleididae

Polycotylidae

ReferencesEdit

  1. ^ Ketchum, H.F.; Benson, R.B.J. (2010). "Global interrelationships of Plesiosauria (Reptilia, Sauropterygia) and the pivotal role of taxon sampling in determining the outcome of phylogenetic analyses". Biological Reviews. 85 (2): 361–392. doi:10.1111/j.1469-185X.2009.00107.x. PMID 20002391.
  2. ^ Benson, R. B. J.; Druckenmiller, P. S. (2013). "Faunal turnover of marine tetrapods during the Jurassic-Cretaceous transition". Biological Reviews. 89: 1–23. doi:10.1111/brv.12038. PMID 23581455.