Sauropterygia
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Sauropterygia: Overview

Abbreviated Dendrogram
Diapsida ├─Archosauromorpha │ └─Lepidosauromorpha ├─Sauropterygia │ ├─Placodontia │ ╞═Pachypleurosauridae │ └─┬─Nothosauridae │ └─Plesiosauria │ ├─Pliosauroidea │ └─Plesiosauroidea │ ├─Elasmosauridae │ └─Cryptocleidoidea └─Lepidosauriformes ├─Sphenodontia └─Squamata
Contents

Overview
Sauropterygia
Placodontia
Pachypleurosauridae
     Dactylosaurus & Anarosaurus
    Serpianosaurus
    Neusticosaurus
Nothosauridae
Pistosauridae
Plesiosauria
    More on Plesiosauria
Pliosauroidea
    Rhomaleosauridae
    Pliosauridae
    Pliosauridae (2)
Plesiosauroidea
    Plesiosauroidea (2)
Elasmosauridae
Cryptocleididea
    Tricleidia
    Polycotylidae
Dendrogram
References

Introduction

Two muraenosaurs: "Somewhere Under Tethys" © Colin Swift, based on a mesh from Gruppo Iride. Reproduced by permission.

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