Hadrosaurus

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Hadrosaurus
Temporal range: Late Cretaceous,
~80–78 Ma
Reconstructed skeleton, Academy of Natural Sciences
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Suborder: Ornithopoda
Family: Hadrosauridae
Subfamily: Hadrosaurinae
Genus: Hadrosaurus
Leidy, 1858
Type species
Hadrosaurus foulkii
Leidy, 1858
Synonyms
  • Hadrosaurus cavatus (Cope, 1871)
  • Ornithotarsus immanis (Cope, 1869)

Hadrosaurus was a genus of hadrosaurid dinosaur from the Upper Cretaceous period. Is the only species in its genus and is the official state dinosaur of New Jersey. The name is dubious because no skull has been found to distinguish it from near relatives.


The Hadrosaurus pictured here was a land dwelling animal, who's body was washed out to sea after its death, where it fossilized on the seafloor.