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Taxon: Hesperornithiformes Sharpe, 1899 (bird)
 Entity: 

Concise hierarchy

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

Included, by definition, in node-based clade

Ornithurae (Clade) Haeckel 1866 [Gauthier 1986] {Chiappe 1991} Ref: L.M. Chiappe, 1991: 336, 337.

Current position

Ornithurae (Clade) Haeckel 1866 [Gauthier 1986] {Chiappe 1991} Ref: K. Padian, 2004: table 11.1 (p. [215]).

Historical positions

Ornithurae (Clade) Haeckel 1866 [Gauthier 1986] {Chiappe 1991} Ref: K. Padian, 2004: table 11.1 (p. [215]).

Number of Subtaxa

1989-present Systema Naturae 2000 [; †9g;13s]
2004 K. Padian [; †9g;13s]
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Last updated: 1 Feb 2024