అనేక పెద్ద ద్వైపాన్ ఓరికోచియన్ డైనోసార్లలో ఒక horny డక్ మరియు webbed కాళ్లు ఉన్నాయి; పాక్షికంగా ఆక్యుటిక్,

hadrosaur's Usage Examples:

Thespesius (meaning "wondrous one") is a dubious genus of hadrosaurid dinosaur from the late Maastrichtian-age Upper Cretaceous Lance Formation of South.

Kingia australis, a plant species Kritosaurus australis, an hadrosaurid (duckbilled) dinosaur species that lived about 73 million years ago, in the Late Cretaceous.

Neonate sized hadrosaur fossils have been documented in the scientific literature.

Later discoveries of additional material revealed its true nature as a hadrosaur.

animal was likely amphibious in nature; this school of thought about hadrosaurs would come to be dominant for over a century to come.

been inferred to have had shovel-like beak morphology, different from the beaks of other hadrosaurs.

cladogram of Hadrosauridae, highlighting Arenysaurini, from that study is reproduced below: Timeline of hadrosaur research Longrich, Nicholas R.

It was a relatively small hadrosaur, approximately five meters (16 ft) long, found in what is now Romania.

a genus of lambeosaurine hadrosaur from the Late Cretaceous (Maastrichtian) of Morocco.

Another primitive hadrosaur, Lophorhothon, is also known from the same formation, although Eotrachodon.

Styracosterns (a clade of ornithopods that includes hadrosaurs and their close relatives).

tyrannosaurids like Albertosaurus and Teratophoneus, armored ankylosaurids, the duckbilled hadrosaurs Parasaurolophus cyrtocristatus and Gryposaurus monumentensis.

Rhinorex is a genus of kritosaurin hadrosaur from the Late Cretaceous Neslen Formation, in central Utah.