Unranked clade
Valid Extinct

Hadrosauromorpha

Norman 2014

Hadrosauromorpha is a clade of iguanodontian ornithopods, defined in 2014 by David B. Norman to divide Hadrosauroidea into the basal taxa with compressed manual bones and a pollex, and the derived taxa that lack them. The clade is formally defined in the PhyloCode as "the largest clade containing Hadrosaurus foulkii, but not Probactrosaurus gobiensis". This results in different taxon inclusion depending on the analysis.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
4
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Hadrosauromorpha
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Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
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Ornithischia Unranked clade
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Neornithischia Unranked clade
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Pyrodontia Unranked clade
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Cerapoda Unranked clade
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Ornithopoda Suborder
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Iguanodontia Infraorder
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Euiguanodontia Unranked clade
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Dryomorpha Unranked clade
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Ankylopollexia Unranked clade
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Neoiguanodontia Unranked clade
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Hadrosauromorpha Unranked clade
Fossil sites 4 geolocated sites
Distribution
Top countries
🇺🇸 United States
4
Geological formations
Mooreville Chalk
2
New Egypt
2
Temporal distribution
Maastrichtian (72.2–66 Ma)
2
Campanian (83.6–72.2 Ma)
1
Santonian (85.7–83.6 Ma)
1
Images 1
Bibliography
Original description
D. B. Norman. 2014. Iguanodonts from the Wealden of England: do they contribute to the discussion concerning hadrosaur origins?. Hadrosaurs
Bibliography (3)
C. D. Brownstein. 2021. Osteology and phylogeny of small-bodied hadrosauromorphs from an end-Cretaceous marine assemblage. Zoological Journal of the Linnean Society 191(1):180-200 DOI ↗
T. A. Gates and J. P. Lamb. 2021. A redescription of Lophorhothon atopus (Ornithopoda: Dinosauria) from the Late Cretaceous of Alabama based on new material. Canadian Journal of Earth Sciences 58:918-935 DOI ↗
W. Langston. 1960. The vertebrate fauna of the Selma Formation of Alabama. Part VI. The dinosaurs. Fieldiana: Geology Memoirs 3(6):315-361 DOI ↗