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Monotypic taxon: Family †Polysphenodontidae Kuhn, 1969 (reptile)
 Entity: 

Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Rhynchocephalia

Original position

Sphenodontoidea (Suborder) Lydekker, 1888 Ref: O. Kuhn, 1969: 43.

Current position

Eusphenodontia (Clade) Herrera-Flores, Stubbs, Elsler & Benton 2018 Ref: O. Kuhn, 1969: 43. [new taxon] [indirect]

Alternative positions

Sphenodontoidea (Suborder) Lydekker, 1888 Ref: O. Kuhn, 1969: 43. [new taxon]

Historical positions

Sphenodontoidea (Suborder) Lydekker, 1888 Ref: O. Kuhn, 1969: 43. [new taxon]

Number of Subtaxa

2024 Available in Systema Naturae 2000 †1g;1s
1989-present Systema Naturae 2000: 7 Aug 2023 [; †1g;1s]
1969 O. Kuhn: [; †1g]
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Last updated: 1 Feb 2024