Dinosauria›Saurischia›Sauropodomorpha›Lessemsauridae
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Lessemsaurus Lessemsaurus sauropoides Bonaparte 1999

/lˌɛsɪmsˈɔːɹəs/ estimated
Late Triassic (Norian) · 227.3–205.7 Mya

Key Statistics

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

Where It Was Found

Country
Argentina
Region
La Rioja
Formation
Los Colorados
Dig sites
1
distinct collections
Recorded finds in Argentina. Present-day positions: the continents have moved since.

Overview

Lessemsaurus sauropoides is a sauropodomorph dinosaur known from the Late Triassic, roughly 227.3–205.7 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from La Rioja, Argentina. It was named by Bonaparte 1999. The species is represented by 1 recorded occurrence in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~5%
confidence from occurrence count
Based on 1 recorded occurrence in the Paleobiology Database.

Geologic Time

Where Lessemsaurus sauropoides sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Lessemsaurus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Lessemsaurus sauropoides'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
Zupaysaurus
Zupaysaurus rougieri
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predator–prey
Lucianovenator
Lucianovenator bonoi
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predator–prey
Powellvenator
Powellvenator podocitus
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coexisted–with
Krzyzanowskisaurus
Krzyzanowskisaurus hunti
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coexisted–with
Tawa
Tawa hallae
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coexisted–with
Protoavis
Protoavis texensis
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coexisted–with
Velocipes
Velocipes guerichi
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same–clade
Unaysaurus
Unaysaurus tolentinoi
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