PBDB Taxon

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Hadrosauridae

Reptilia - Iguanodontidae

Taxonomy

Hadrosauridae was named by Nopcsa (1901).

It was assigned to Ornithopodidae by Nopcsa (1901).

Subtaxa

Ornithotarsus immanis

Synonyms

Ornithotarsus immanis was named by Cope (1869). Its type specimen is YPM 3221, a set of limb elements (distal tibia, distal fibula and fused astragalus and calcaneum), and it is a 3D body fossil. Its type locality is Southern shoreline of Raritan Bay, which is in a Campanian marine claystone/marl in the Merchantville Formation of New Jersey. It is the type species of Ornithotarsus.

It was synonymized subjectively with Hadrosaurus foulkii by Baird and Horner (1977), Weishampel and Horner (1990), Horner et al. (2004) and Weishampel (2006); it was considered a nomen dubium by Prieto-Márquez et al. (2006) and Brownstein (2021).

Synonymy list

Year	Name and author
1869	Ornithotarsus immanis Cope p. 117
1870	Ornithotarsus immanis Cope pp. 121-122
1871	Ornithotarsus immanis Cope p. 52
1875	Ornithotarsus immanis Cope p. 40
1885	Ornithotarsus immanis Cope p. 1208
1890	Ornithotarsus immanis Zittel p. 765
1900	Ornithotarsus immanis Nopcsa p. 557
1901	Hadrosauridae Nopcsa p. 208
1901	Ornithotarsus immanis Nopcsa p. 212
1902	Ornithotarsus immanis Hay p. 505
1927	Ornithotarsus immanis Huene p. 264
1930	Ornithotarsus immanis Hay p. 216
1930	Ornithotarsus immanis Russell p. 137
1942	Ornithotarsus immanis Lull and Wright p. 146
1944	Ornithotarsus immanis Rapp p. 287
1955	Ornithotarsus immanis Miller, Jr. p. 911
1960	Ornithotarsus immanis Langston p. 339
1962	Ornithotarsus immanis Miller p. 194
1964	Ornithotarsus immanis Kuhn 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
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()

Rank	Name	Author
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Cerapoda
—	Ornithopoda	()
—	Clypeodonta
—	Iguanodontia	()
—	Dryomorpha
—	Ankylopollexia
—	Neoiguanodontia
family	Iguanodontidae
—	Hadrosauridae
—	Hadrosauridae

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.

Unr. †Hadrosauridae Nopcsa 1901

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Invalid names: Ornithotarsus immanis Cope 1869 [nomen dubium]

Diagnosis

Reference	Diagnosis
B. F. Nopcsa 1901	Foguk középsö éllel, több sorban. [Their teeth are in the middle, in several rows.]