Dinosauria›Ornithischia›Ornithopoda›Hadrosauridae
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Saurolophus Saurolophus angustirostris Rozhdestvensky 1952

/sɔːˈrɒləfəs/
Late Cretaceous (Maastrichtian) · 72.2–66 Mya

Key Statistics

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

Where It Was Found

Country
Mongolia
Region
Omnogov
Formation
Nemegt
Dig sites
12
distinct collections
Recorded finds in Mongolia. Present-day positions: the continents have moved since.

Overview

Saurolophus angustirostris is an ornithopod dinosaur known from the Late Cretaceous, roughly 72.2–66.0 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from Omnogov, Mongolia. It was named by Rozhdestvensky 1952. The species is represented by 12 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~38%
well attested
Based on 12 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Saurolophus angustirostris sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Saurolophus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Saurolophus angustirostris'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
Tarbosaurus
Tarbosaurus bataar
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predator–prey
Velociraptor
Velociraptor mongoliensis
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predator–prey
Mononykus
Mononykus olecranus
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coexisted–with
Saurornitholestes
Saurornitholestes langstoni
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coexisted–with
Tyrannosaurus
Tyrannosaurus rex
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coexisted–with
Richardoestesia
Richardoestesia isosceles
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coexisted–with
Richardoestesia
Richardoestesia gilmorei
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coexisted–with
Troodon
Troodon formosus
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