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Entity:

Rhynchocephalia (Order) - tuataras ..[†Choristoderoidea] (Suborder) ..[†Clarazidaurida] (Suborder) ..[†Clarazisaurida] (Suborder) ..[†Clarazisauroidea] (Suborder) ..[†Eosuchoidea] (Suborder) ..†Gephyrosauridae (Family) ..[†Pleurosaurida] (Suborder) ..[†Rhynchosaurida] (Suborder) ..[†Sapheosauridae] (Family) ..[†Sapheosauroidea] (Suborder) ..Sphenodontia (Clade) ..[Sphenodontida] (Suborder) ..[Sphenodontoidea] (Suborder) ..[†Thalattosauroidea] (Suborder) ..[†Pleurosauroidea] (Suborder)

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Last updated: 28 Aug 2026