rhynchocephalian

rhynchocephalian

[ring-koh-suh-feyl-yuhn, -fey-lee-uhn]
adjective
1.
belonging or pertaining to the Rhynchocephalia, an order of lizardlike reptiles that are extinct except for the tuatara.
noun
2.
a rhynchocephalian reptile.

Origin:
1865–70; < Neo-Latin Rhynchocephali(a) name of the order (< Greek rhýncho(s) snout + Neo-Latin -cephalia; see cephal-, -ia) + -an

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World English Dictionary
rhynchocephalian (ˌrɪŋkəʊsɪˈfælɪən)
 
adj
1.  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
 
n
2.  any reptile belonging to the order Rhyncocephalia
 
[C19: from New Latin Rhynchocephalia, from Greek rhunkhos a snout + kephalē head]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
rhynchocephalian   (rĭng'kō-sə-fāl'yən)  Pronunciation Key 
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.
The American Heritage® Science Dictionary
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