sauropterygia

It has also been suggested that hupehsuchians were related to or members of Sauropterygia.

The most important fossil group, the Sauropterygia, includes the plesiosaurs.

Because of this, the trilophosaurs were once classified with placodonts within Sauropterygia.

It is believed that they were part of Sauropterygia, the group that includes plesiosaurs.

A review of the Sauropterygia.

In the Tethys Ocean, the first sauropterygia were present, the nothosaurs and early plesiosaurs.

Placodonts are in the Order Sauropterygia, the group that includes Plesiosaurs.

The Plesiosauria have their origins within the Sauropterygia, a group of perhaps archosauromorph reptiles that returned to the sea.

However, it has been possible to check its occurrence with more basal members of the more inclusive group plesiosaurs belonged to, the Sauropterygia.

According to Li et al. (2014), saurosphargids did not belong to Sauropterygia, although they were closely related to it, forming its sister taxon.

The Sauropterygia was a superorder of successful aquatic reptiles that flourished during the Mesozoic era.

Containing the Orders Ichthyopterygia and Sauropterygia.

Below is a cladogram from Neenan et al. (2013) showing the position of Placodontiformes within Sauropterygia:

Placodontiformes is the most basal clade of Sauropterygia and the sister group of Eosauropterygia, which includes all other sauropterygians.

Until the 1980s, it was common to assume a close relationship between Ichthyosauria and Sauropterygia, another marine reptile group, within an overarching Euryapsida.

The Nature of the Shoulder Girdle and Clavicular Arch in Sauropterygia.

Sauropterygia I. Placodontia, Pachypleurosauria, Nothosauroidea, Pistosauroidea.

A cladistic analysis and taxonomic revision of the Plesiosauria (Reptilia: Sauropterygia); Acta Zool.

Simosaurus is an extinct genus of marine reptile within the superorder Sauropterygia from the Middle Triassic of central Europe.

Keichousaurus, and the pachypleurosaur family broadly, are sometimes classified within Nothosauroidea, but are otherwise listed as a separate, more primitive lineage within Sauropterygia.

Terminonatator ponteixensis, a new elasmosaur (Reptilia:Sauropterygia) from the Upper Cretaceous of Saskatchewan"."

Several groups of Mesozoic marine reptiles also exhibited viviparity, such as mosasaurs, ichthyosaurs, and Sauropterygia, a group that include pachypleurosaurs and Plesiosauria.

A New Pachypleurosaur (Reptilia: Sauropterygia) from the Middle Triassic of Monte San Giorgio, Switzerland.

Osteology of Manemergus anguirostris n. gen. et sp., a new plesiosaur (Reptilia, Sauropterygia) from the Upper Cretaceous of Morocco.

Anatomy and relationships of Corosaurus alcovensis (Diapsida: Sauropterygia) and the Triassic Alcova Limestone of Wyoming"."