Polycotylidae


Classification

Sauropterygia–>
Eosauropterygia–>
Eusauropterygia–>
Pistosauroidea–>
Plesiosauria–>
Plesiosauroidea–>
cryptocleidoidea–>
Polycotylidae

Polycotylids have been traditionally classified as to be pliosaurs because of their short necks and large heads, but cladistic analyses including a broader suite of anatomical characters
have revealed that they may be plesiosauroids, more closely related to the long-necked elasmosaurids and cryptoclidids than to pliosaurs.
They share a number of features including the elongate rostrum and short postorbital region. They had a worldwide distribution in the Cretaceous Period.

  • character 1

Polycotylid genera