What does the name hadrosaur mean?
hadrosaurus (ˌhædrəˈsɔːrəs) / (ˈhædrəˌsɔː) / noun. any one of a large group of bipedal Upper Cretaceous dinosaurs of the genus Anatosaurus, Maiasaura, Edmontosaurus, and related genera: partly aquatic, with a duck-billed skull and webbed feetAlso called: duck-billed dinosaur.
What did the hadrosaur look like?
The most recognizable aspect of hadrosaur anatomy is the flattened and laterally stretched rostral bones, which gives the distinct duck-bill look. Some members of the hadrosaurs also had massive crests on their heads, probably for display.
Did hadrosaurs evolve from Iguanodonts?
The iguanodonts can be considered to be something of an evolutionary transition between hypsilophodonts and hadrosaurs; their bodies were fairly similar-looking to hadrosaurs although they generally lacked crests. The dental battery of hadrosaurs didn’t come out of nowhere – it has a well-documented fossil record.
Is Edmontosaurus a hadrosaur?
Edmontosaurus belongs to the subfamily Hadrosaurinae (or Saurolophinae). The Hadrosaurinae were a group of hadrosaurs that lacked the large, hollow, bony crest characteristic of the other hadrosaur subfamily, the Lambeosaurinae.
How tall is a hadrosaur?
Hadrosaurus were large sized animals growing up to 7–8 m (23–26 ft) and weighing as much as 2 to 4 t (2,000 to 4,000 kg).
What is the largest hadrosaur?
More recent discoveries include gigantic hadrosaurs like Shantungosaurus giganteus from China. At 15 meters in length and nearly 16 metric tons in weight it is the largest known hadrosaur and is known from a nearly complete skeleton.
What was the last hadrosaur?
Spanish researchers have studied the fossil record of hadrosaurs, the so-called ‘duck-billed’ dinosaurs, in the Iberian Peninsula for the purpose of determining that they were the last of their kind to inhabit the European continent before disappearing during the K/T extinction event that occurred 65.5 million years …
Who is the most closely related group to hadrosaurs?
Iguanodontids were used as the primary outgroup to provide examples of the most closely related group to the hadrosaurs, and two specimens of camp- tosaurids also were used as the second outgroup to give an indication of the morphological trajectory of the euornithopods (sensu Sereno 1986).
Is Anatotitan real?
The first good specimen, the former holotype (specimen on which a taxonomic name is based) of Anatosaurus copei (Anatotitan), was a complete skull and most of a skeleton collected in 1882 by Dr. J. L. Wortman and R. S. Hill for American paleontologist Edward Drinker Cope.
Did T. rex eat Edmontosaurus?
T. rex was a huge carnivore and primarily ate herbivorous dinosaurs, including Edmontosaurus and Triceratops. The predator acquired its food through scavenging and hunting, grew incredibly fast and ate hundreds of pounds at a time, said University of Kansas paleontologist David Burnham.
What was the smallest hadrosaur?
Although its name identifies it as a small hadrosaur, it is based on juvenile remains, and the size of the adult hadrosaur is unknown….Microhadrosaurus.
| Microhadrosaurus Temporal range: Late Cretaceous, | |
|---|---|
| Scientific classification | |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Order: | †Ornithischia |
What was the biggest hadrosaur?
Shantungosaurus giganteus
More recent discoveries include gigantic hadrosaurs like Shantungosaurus giganteus from China. At 15 meters in length and nearly 16 metric tons in weight it is the largest known hadrosaur and is known from a nearly complete skeleton.
Is Parasaurolophus a hadrosaur?
Despite its popularity though (which seems to have arisen around the time of the dinosaur’s bit-part in Jurassic Park), Parasaurolophus remains a relatively rare hadrosaur compared to other famous duckbills from Cretaceous North America, and many strange ideas have surrounded it over the decades.
Is Ouranosaurus real?
Ouranosaurus is a genus of herbivorous basal hadrosauriform dinosaur that lived during the Aptian stage of the Early Cretaceous of modern-day Niger and Cameroon. Ouranosaurus measured about 7 to 8.3 metres (23 to 27 ft) long.
What is Anatosaurus?
a former name for a type of dinosaur that had a wide beak like a duck: The anatosaurus was a bipedal duck-billed dinosaur of the Late Cretaceous Period. More examples. Anatosaurus was named by Lull and Wright in 1942.