Dinosauria›Ornithischia›Ornithopoda›Hadrosauridae
Silhouette of Parasaurolophus cyrtocristatus

Parasaurolophus Parasaurolophus cyrtocristatus Ostrom 1961

/ˌpærəsɔːˈrɒləfəs/
Late Cretaceous (Campanian) · 83.6–72.2 Mya

Key Statistics

Diet
herbivore
Locomotion
bipedal
inferred from clade
Habitat
ground-dwelling
Social
herding

Where It Was Found

Country
United States
Regions
New Mexico · Utah
Formations
Fruitland · Kaiparowits
Dig sites
3
distinct collections
Recorded finds in United States. Present-day positions: the continents have moved since.

Overview

Parasaurolophus cyrtocristatus is an ornithopod dinosaur known from the Late Cretaceous, roughly 83.6–72.2 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from New Mexico, United States. It was named by Ostrom 1961. The species is represented by 3 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~11%
confidence from occurrence count
Based on 3 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Parasaurolophus cyrtocristatus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Parasaurolophus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Parasaurolophus cyrtocristatus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.

predator–prey
Bistahieversor
Bistahieversor sealeyi
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predator–prey
Teratophoneus
Teratophoneus curriei
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predator–prey
Lythronax
Lythronax argestes
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coexisted–with
Centrosaurus
Centrosaurus apertus
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coexisted–with
Stegoceras
Stegoceras validum
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coexisted–with
Ichthyornis
Ichthyornis dispar
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coexisted–with
Hesperornis
Hesperornis regalis
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coexisted–with
Protoceratops
Protoceratops andrewsi
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