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Monotypic taxon: Order †Protopterygiformes Zhou & Zhang, 2006 (bird)
 Entity: 

Concise hierarchy

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

Original position

Enantiornithes (Subclass) Walker, 1981 Ref: Z. Zhou & F. Zhang, 2006: 79.

Original entries

Protopterygidae (Family) Zhou & Zhang, 2006 Ref: Z. Zhou & F. Zhang, 2006: 79.

Current position

Enantiornithes (Infraclass) Walker, 1981 Ref: Z. Zhou & F. Zhang, 2006: 79. [new taxon] [implicit]

Alternative positions

Enantiornithes (Clade) Walker 1981 [Sereno 1998] Ref: Z. Zhou & F. Zhang, 2006 [new taxon] [implicit]
Enantiornithes (Subclass) Walker, 1981 Ref: Z. Zhou & F. Zhang, 2006: 79. [new taxon]

Historical positions

Enantiornithes (Subclass) Walker, 1981 Ref: Z. Zhou & F. Zhang, 2006: 79, table 1. [new taxon]

Number of Subtaxa

2024 Available in Systema Naturae 2000 †1f;3g;3s
1989-present Systema Naturae 2000 [; †1f;3g;3s]
2006 Z. Zhou & F. Zhang: 78, 79, table 1 †[1f];1[3]g;1[3]s
2006 Z. Zhou & F. Zhang: 78, 79, table 1 †[1f];1[3]g;1[3]s
©2004-2024 Universal Taxonomic Services
Last updated: 1 Feb 2024