PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Argoides

Reptilia

Taxonomy

Argoides was named by Hitchcock (1845). It is considered to be a form taxon. Its type is Ornithoidichnites isodactylus.

It was assigned to Tridactylidaee by Hitchcock (1845); to Dinosauria by Lull (1904); to Dinosauria by Kuhn (1958); to Reptilia by Lull (1917), Lull (1953) and Kuhn (1963); to Saurischia by Haubold (1971) and Haubold (1974); and to Theropoda by Romero Molina et al. (2003).

Species

A. macrodactylus (syn. Argozoum disparidigitatum), A. minimus (syn. A. isodactyletus, Argozoum paridigitatum, Plesiornis aequalipes), A. redfieldii, A. robustus

Species lacking formal opinion data

A. redfieldianum

Synonyms

Argozoum was named by Hitchcock (1848). It is considered to be a form taxon.

It was synonymized subjectively with Plesiornis by Kuhn (1958); it was synonymized subjectively with Argoides by Hay (1930) and Haubold (1971).

It was assigned to Grallatores by Hitchcock (1848); to Leptodactyli by Quenstedt (1882); and to Aves by Hitchcock (1898).

Synonymy list

Year	Name and author
1845	Argoides Hitchcock p. 24
1848	Argozoum Hitchcock p. 184
1882	Argozoum Quenstedt p. 131
1898	Argozoum Hitchcock p. 401
1904	Argoides Lull p. 518
1917	Argoides Lull p. 120
1953	Argoides Lull p. 227
1958	Argoides Kuhn p. 25
1963	Argoides Kuhn p. 96
1971	Argoides Haubold p. 81
1974	Argoides Haubold p. 46
2003	Argoides Romero Molina et al. p. 24

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota

Rank	Name	Author
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Saurischia	()
genus	Argoides

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Argoides Hitchcock 1845

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†Argoides macrodactylus Hitchcock 1841

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Invalid names: Argozoum disparidigitatum Hitchcock 1848 [synonym]

†Argoides minimus Hitchcock 1836

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Invalid names: Argoides isodactyletus Hitchcock 1841 [synonym], Argozoum paridigitatum Hitchcock 1848 [synonym], Plesiornis aequalipes Hitchcock 1858 [synonym]

†Argoides redfieldii Hitchcock 1844

†Argoides robustus Hitchcock 1837

Invalid names: Argozoum Hitchcock 1848 [synonym]

Diagnosis

Reference	Diagnosis
E. Hitchcock 1848 (Argozoum)	Digitigrade, sometimes nearly plantigrade, tridigitate. Toes curved; the lateral ones mostly outwards, somewhat keel-shaped; leptodactylous; vertebrated.