RHOMALEOSAURIDAE

Sauropterygia > Eosauropterygia > Eusauropterygia > Plesiosauria > Pliosauroidea> Rhomaleosauridae

Discussion

All rhomaleosaurids share a rather large typically pliosaur head with a reasonably long neck composed of about 28 vertebrae. The group ranges from the Lower Jurassic to the Middle Jurassic

Phylogeny

Cladogram of rhomaleosaurid pliosaurs (from Smith and Dyke, 2008).

Members

Archaeonectrus (according to Smith and Dyke, [2008]).

Borealonectes

Eurycleidus

Leptocleidus (according to O'Keefe, 2001)

Macroplata

Maresaurus (according to Smith and Dyke, [2008]).

Rhomaleosaurus (='Thaumatosaurus')

Simolestes (according to O'Keefe, 2001)

Sthenarosaurus

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All rights reserved. Last updated Oct2008. This site first opened in June 2001 and is updated frequently. Adam Stuart Smith.