"Near Crested Lizard"

Parasaurolophus was a duck-billed dinosaur with an extremely long, backward-sloping, bony crest. This was hollow and as large as the rest of its skull. Researchers believe that this served to produce a foghorn-like sound at low frequencies.

Parasaurolophus was a herbivore that ate pine needles, leaves, and twigs. Fossilized stomach contents have been found, consisting mainly of terrestrial plants.

Parasaurolophus probably migrated in herds like other duck-billed dinosaurs.

Prehistoric EraUpper Cretaceous (Late Campanian)
SpeciesParasaurolophus walkeri, P. tubicen, P. cyrtocristatus
Height4 meter
Length9.5 meter
Weight2.5 tons
TerritoryAlberta (Canada), Utah and New Mexico (USA)

In 2009, student Kevin Terris unearthed a young (about 1 year old) Parasaurolophus in Grand Staircase-Escalante National Monument, southern Utah. He named the specimen "Joe."

Interestingly, he found only a small bump on Joe's head . Terris suspects that it did not develop into the curved adult tube until further growth.

Is Parasaurolophus dipped like a duck?

It was once thought that the long crest of Parasaurolophus was a kind of snorkel and served it to breathe when it grazed aquatic plants. But this idea did not hold, because although the comb looks like a snorkel, the tip is completely solid and has no opening.

Parasaurolophus Größenvergleich
Größenvergleich Parasaurolophus - Mensch

A later discovery of the tracks of the front paws of duck-billed dinosaurs has definitely shown that Parasaurolophus did not have webbed feet. In fact, in some ways, just the opposite seems to be true. The extra flesh on their front extremities did not form webbed feet, but rather a large cushion pad like those found on the feet of camels.

Parasaurolophus Skelett
Parasaurolophus Skelett

Image source: Leandra Walters, Phil Senter, James H. Robins, CC BY 2.5, via Wikimedia Commons

Size: Marmelad, CC BY-SA 2.5, via Wikimedia Commons

Skeleton: Scott Hartman ([1]), CC BY 4.0, via Wikimedia Commons

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