Sphenodontia sive Rhynchocephalia (Guntherus, 1867) sunt Reptilium ordo antiquissimus (a Triassico extans), qui hodie duabus tantum speciebus (Sphenodonte guntheri et Sphenodonte punctato) constat.
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─o Lepidosauria ├── Squamata Oppel, 1811 └─o Sphenodontia Williston, 1925 ├── † Gephyrosauridae Evans, 1980 ├── † Pleurosauridae └─o Sphenodontidae └─o Sphenodontinae └─o Sphenodontini └─o Sphenodon Gray 1842 ├── † Sphenodon diversus Colenso, 1885 ├── Sphenodon guntheri Buller, 1877 └── Sphenodon punctatus Gray 1831
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Situs scientifici: • ITIS • Biodiversity • Encyclopedia of Life • Fossilworks |
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