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Taxon: Genus †Petrolacosaurus Lane, 1945 (reptile)
 Entity: 

Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Araeoscelidia - (Family) Petrolacosauridae

Included, by definition, in node-based clade

Araeoscelidia (Clade) Williston 1913 [Laurin 1991] Ref: M. Laurin, 1991: 83.

Excluded, by definition, from branch-based clade

Neodiapsida (Clade) Benton 1985 Ref: M.J. Benton, 1985: 112 ("and a few other groups").

Current position

Petrolacosauridae (Family) Peabody, 1952

Historical positions

reptiles (Clade) Linnaeus 1758 [Laurin & Reisz 2020] Ref: M.D. Ezcurra et al., 2020: ext. data fig. 4. [rough position] [indirect]
Araeoscelidia (Clade) Williston 1913 [Laurin 1991] Ref: M. Laurin, 1991: fig. 11. [rough position]

Number of Subtaxa

2024 Available in Systema Naturae 2000 †1s
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Last updated: 1 Feb 2024