Genre

Valide Éteint

Thyreosaurus

Zafaty et al. 2024

Thyreosaurus est un genre fossile de dinosaures ornithischiens, de la famille des Stégosauridés. On n'en connaît que l'espèce type Thyreosaurus atlasicus, qui a vécu au Jurassique moyen, il y a environ 168 à 161 millions d'années, dans ce qui est aujourd’hui le Maroc.

Plage temporelle

Trias

Jurassique

Crétacé

Paléogène

Néogène

252 201 145 66 0 Ma

Occurrences PBDB

Groupe

Dinosaures

Herbivore Vivant au sol, grégaire Terrestre

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Skeletal diagram of Thyreosaurus atlasicus showing known fossil material of the holotype specimen (HIIUC-BN00). The exact positions of the vertebrae are unknown. The ribs are likely from different sides of the body but are shown here on a single side for clarity. Scale bar=1 m. Note: While Thyreosaurus can be reconstructed as a dacentrurine stegosaur with reasonable confidence, the structure and arrangement of its unusual osteoderms are much less certain. Traditional stegosaur plates and spikes were not found in association with the holotype. Rather, several unusual osteoderms were found that appear to have rested flat against the animal's body. It is unclear how this would have appeared in life, or if Thyreosaurus also had the plates and spikes normally found with related taxa. They are indicated here (to scale) outside of the silhouette. Key  =Holotype (HIIUC-BN00)  =Unknown References "A new stegosaurian dinosaur (Ornithischia: Thyreophora) with a remarkable dermal armour from the Middle Jurassic of North Africa" "A new long-necked 'sauropod-mimic' stegosaur and the evolution of the plated dinosaurs" "Dacentrurine stegosaurs (Dinosauria): A new specimen of Miragaia longicollum from the Late Jurassic of Portugal resolves taxonomical validity and shows the occurrence of the clade in North America" "Preparation techniques applied to a stegosaurian dinosaur from Portugal" Dacentrurus skeletal by Dan Folkes Miragaia skeletal by Ashley Patch © SlvrHwk · CC BY-SA 4.0 · Wikimedia

Légende en anglais — traduction française non disponible.

PBDB ↗ Wikipedia ↗

Classification

Dinosauria Clade non classé

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Ornithischia Clade non classé

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Parapredentata Clade non classé

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Saphornithischia Clade non classé

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Prionodontia Clade non classé

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Genasauria Clade non classé

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Thyreophora Clade non classé

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Thyreophoroidea Superfamille

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Eurypoda Clade non classé

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Stegosauria Clade non classé

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Stegosauridae Famille

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Neostegosauria Clade non classé

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Dacentrurinae Sous-famille

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Thyreosaurus Genre

Sites de découverte 1 sites géolocalisés

Répartition

Principaux pays

🇲🇦 Maroc

Formations géologiques

El Mers III

Distribution temporelle

Callovien (165.3–161.5 Ma)

Espèces (1)

Thyreosaurus atlasicus 168 Ma

Images 1

Bibliographie

Description originale

O. Zafaty, M. Oukassou, and F. Riguetti, J. Company, S. Bendrioua, R. Tabuce, A. Charrière, X. Pereda-Suberbiola. 2024. A new stegosaurian dinosaur (Ornithischia: Thyreophora) with a remarkable dermal armour from the Middle Jurassic of North Africa. Gondwana Research 131:344-362 DOI ↗

Bibliographie (1)

Thyreosaurus

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