(n.pl.) An order of reptiles having biconcave vertebrae, immovable quadrate bones, and many other peculiar osteological characters. Hatteria is the only living genus, but numerous fossil genera are known, some of which are among the earliest of reptiles. See Hatteria. Called also Rhynchocephalia.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). rhynchocephala. Retrieved September 21, 2026, from http://smartdefine.org/rhynchocephala/definitions/2055872 |
| Chicago | Webster's. 2011. "rhynchocephala" http://smartdefine.org/rhynchocephala/definitions/2055872 (accessed September 21, 2026). |
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| MLA | Webster's. "rhynchocephala" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/rhynchocephala/definitions/2055872> |