Dinosauria›Saurischia›Sauropodomorpha›Rebbachisauridae
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Sidersaura Sidersaura marae Lerzo et al. 2024

/sˈaɪdɚsˌɔːɹə/ estimated
Late Cretaceous (Turonian) · 100.5–89.8 Mya

Key Statistics

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

Where It Was Found

Country
Argentina
Region
Neuquén
Formation
Huincul
Dig sites
2
distinct collections
Recorded finds in Argentina. Present-day positions: the continents have moved since.

Overview

Sidersaura marae is a sauropodomorph dinosaur known from the Late Cretaceous, roughly 100.5–89.8 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from Neuquén, Argentina. It was named by Lerzo et al. 2024. The species is represented by 2 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~8%
confidence from occurrence count
Based on 2 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Sidersaura marae sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Sidersaura
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Sidersaura marae'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
Giganotosaurus
Giganotosaurus carolinii
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predator–prey
Taurovenator
Taurovenator violantei
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predator–prey
Skorpiovenator
Skorpiovenator bustingorryi
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coexisted–with
Richardoestesia
Richardoestesia asiatica
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coexisted–with
Paronychodon
Paronychodon asiaticus
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coexisted–with
Caenagnathasia
Caenagnathasia martinsoni
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coexisted–with
Turanoceratops
Turanoceratops tardabilis
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coexisted–with
Itemirus
Itemirus medullaris
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