belonging or pertaining to the Rhynchocephalia, an order of lizardlike reptiles that are extinct except for the tuatara.
a rhynchocephalian reptile.
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How to use rhynchocephalian in a sentence
In the rhynchocephalian Hyperodapedon they are drawn out into a strongly curved beak.The Vertebrate Skeleton | Sidney H. Reynolds
The palate of Captorhinus is of the generalized rhynchocephalian type (Romer, 1956:71).The Adductor Muscles of the Jaw In Some Primitive Reptiles | Richard C. Fox
The sphenacodonts possess the primitive rhynchocephalian kind of palate.The Adductor Muscles of the Jaw In Some Primitive Reptiles | Richard C. Fox
British Dictionary definitions for rhynchocephalian
of, relating to, or belonging to the Rhyncocephalia, an order of lizard-like reptiles common in the Mesozoic era but today represented only by the tuatara
any reptile belonging to the order Rhyncocephalia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for rhynchocephalian
Any of various mostly extinct lizardlike reptiles of the order Rhynchocephalia, whose only living representative is the tuatara (Sphenodon punctatus and S. guntheri). Rhynchocephalians have several primitive skeletal features, including two temporal arches on each side of the skull rather than one, and teeth attached to the edge of the jaw rather than set in sockets. Most rhynchocephalians died out by the end of the Jurassic Period.
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