Xenopsaria
| Cryptoclidians Temporal range: Middle Jurassic-Late Cretaceous, 165–66 Ma |
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| Skeleton of Thililua longicollis, National Museum of Nature and Science | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | †Sauropterygia |
| Order: | †Plesiosauria |
| Superfamily: | †Plesiosauroidea |
| Clade: |
†Cryptoclidia Ketchum and Benson, 2010 |
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Cryptoclidia is a clade of plesiosaurs.
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 eurymerus and Polycotylus latipinnis; and all its descendants.
The following cladogram follows an analysis by Benson & Druckenmiller (2014).
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Wikipedia