Unranked clade

Valid Extinct

Stegosauria

(Marsh 1877)

Stegosauria is a group of herbivorous ornithischian dinosaurs that lived during the Jurassic and early Cretaceous periods. Stegosaurian fossils have been found mostly in the Northern Hemisphere, Africa and South America. Although their geographical origins are unclear, the earliest unequivocal stegosaurians are known from the Middle Jurassic, including Adratiklit, Bashanosaurus, Isaberrysaura and Thyreosaurus.

Temporal range

Triassic

Jurassic

Cretaceous

Paleogene

Neogene

252 201 145 66 0 Ma

PBDB occurrences

316

Group

Dinosaures

Herbivore Ground dwelling, gregarious Terrestrial

click to enlarge

Wikimedia

PBDB ↗ Wikipedia ↗

Classification

Dinosauria Unranked clade

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Ornithischia Unranked clade

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Parapredentata Unranked clade

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Saphornithischia Unranked clade

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Prionodontia Unranked clade

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Genasauria Unranked clade

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Thyreophora Unranked clade

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Thyreophoroidea Superfamily

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Eurypoda Unranked clade

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Stegosauria Unranked clade

Fossil sites 316 geolocated sites

Distribution

Top countries

🇺🇸 United States

106

🇪🇸 Spain

🇨🇳 China

🇹🇿 Tanzania

🇬🇧 United Kingdom

🇵🇹 Portugal

🇫🇷 France

🇦🇺 Australia

🇷🇺 Russia

🇦🇷 Argentina

Geological formations

Morrison

103

Tendaguru

Villar del Arzobispo

Shaximiao

Lourinhã

Broome Sandstone

Oxford Clay

Artoles

Kimmeridge Clay

Ilek

Temporal distribution

Maastrichtian (72.2–66 Ma)

Campanian (83.6–72.2 Ma)

Cenomanian (100.5–93.9 Ma)

Albian (113.2–100.5 Ma)

Aptian (121.4–113.2 Ma)

Barremian (125.77–121.4 Ma)

Hauterivian (132.6–125.77 Ma)

Valanginian (137.05–132.6 Ma)

Berriasian (143.1–137.05 Ma)

Tithonian (149.2–143.1 Ma)

145

Kimmeridgian (154.8–149.2 Ma)

Oxfordian (161.5–154.8 Ma)

Callovian (165.3–161.5 Ma)

Bathonian (168.2–165.3 Ma)

Bajocian (170.9–168.2 Ma)

Aalenian (174.7–170.9 Ma)

Toarcian (184.2–174.7 Ma)

Synonyms (22)

Amargastegos nomen dubium Stegosauria

Amargastegos brevicollus nomen dubium, species not entered Stegosauria

Chialingosaurus nomen dubium Stegosauria

Chialingosaurus chuhsienensis nomen dubium, species not entered Stegosauria

Chialingosaurus guangyuanensis nomen dubium, species not entered Stegosauria

Chialingosaurus kuani nomen dubium, species not entered Stegosauria

Craterosaurus nomen dubium Stegosauria

Craterosaurus pottonensis nomen dubium, species not entered Stegosauria

Dravidosaurus nomen dubium Stegosauria

Eoplophysis nomen dubium Stegosauria

Eoplophysis vetustus nomen dubium, species not entered Stegosauria

Ferganastegos nomen dubium Stegosauria

Ferganastegos callovicus nomen dubium, species not entered Stegosauria

Lexovisaurus durobrivensis nomen dubium, species not entered Stegosauria

Monkonosaurus nomen dubium Stegosauria

Monkonosaurus lawulacus nomen dubium, species not entered Stegosauria

Omosaurus leedsi nomen dubium, species not entered Stegosauria

Regnosaurus nomen dubium Stegosauria

Regnosaurus northamptoni nomen dubium, species not entered Stegosauria

Saldamosaurus nomen dubium Stegosauria

Saldamosaurus tuvensis nomen dubium, species not entered Stegosauria

Wuerhosaurus ordosensis nomen dubium, species not entered Stegosauria

News 2

A Beautiful Bas-relief Stegosaurus

Stegosauria

Whilst on a short visit to Berlin, we took the opportunity to admire and photograph the bas-relief Stegosaurus on display at the Berlin Aquarium building. The building was built between 1911 and 1913. At the time, the various murals and sculptures depicting prehistoric animals were cutting edge. However, after more than a hundred years our

17/05/2026 everythingdinosaur

Stunning 150-million-year-old stegosaur skull rewrites dinosaur evolution

fossil Dacentrurus Dinosauria Stegosauria discovery +2

A spectacular dinosaur discovery in Spain is giving scientists a rare new look inside the world of stegosaurs. Paleontologists uncovered the best-preserved stegosaur skull ever found in Europe, belonging to the iconic plated dinosaur Dacentrurus armatus, which roamed Earth around 150 million years ago. Because stegosaur skulls are extremely fragile and almost never survive intact, the fossil is helping researchers uncover previously unknown details about how these armored giants evolved.

17/05/2026 sciencedaily

Images 6

Bibliography

Original description

O. C. Marsh. 1877. A new order of extinct Reptilia (Stegosauria) from the Jurassic of the Rocky Mountains. American Journal of Science and Arts 14:513-514 DOI ↗

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J. I. Ruiz-Omeñaca, X. Pereda Suberbiola, and L. Piñuela, J. C. García Ramos. 2013. First evidence of stegosaurs (Dinosauria: Thyreophora) in the Vega Formation, Kimmeridgian, Asturias, N Spain. Geogaceta 53:37-40

L. Xing, M. G. Lockley, and R. T. McCrea, G. D. Gierlinski, L. G. Buckley, J. Zhang, L. Qi, C. Jia. 2013. First record of Deltapodus tracks from the Early Cretaceous of China. Cretaceous Research 42(1):55-65 DOI ↗

L. Alcalá, A. Cobos, and E. Espilez, F. Gascó, L. Mampel, C. Martín Escorza, R. Royo-Torres. 2012. Icnitas de dinosaurios en la Formación Villar del Arzobispo de Ababuj (Teruel, España) [Dinosaur footprints from the Villar del Arzobispo Formation in Ababuj (Teruel, Spain)]. Geogaceta 51:35-38

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S. Apesteguía and P. A. Gallina. 2011. Tunasniyoj, a dinosaur tracksite from the Jurassic-Cretaceous boundary of Bolivia. Anais da Academia Brasileira de Ciências 83(1):267-277 DOI ↗

D. L. Jeffery, J. L. Bertog, and J. R. Bishop. 2011. Sequence stratigraphy of dinosaur lake: small scale fluvio-deltaic stratal relationships of a dinosaur accumulation at the Aaron Scott Quarry, Morrison Formation, San Rafael Swell, Utah. Palaios 26(5):275-283 DOI ↗

O. Mateus, J. Milàn, and M. Romano, M. A. Whyte. 2011. New finds of stegosaur tracks from the Upper Jurassic Lourinhã Formation, Portugal. Acta Palaeontologica Polonica 56(3):651-658 DOI ↗

R. T. Tucker. 2011. Taphonomy of Sheridan College Quarry 1, Buffalo, Wyoming: implications for reconstructing historic dinosaur localities including Utterback's 1902–1910 Morrison dinosaur expeditions. Geobios 44(5):527-541 DOI ↗

J.-P. Billon-Bruyat, J.-M. Mazin, and J. Pouech. 2010. A stegosaur tooth (Dinosauria, Ornithischia) from the Early Cretaceous of southwestern France. Swiss Journal of Geosciences 103:143-153 DOI ↗

L. Carcavilla, L. Piñuela, and J. C. García-Ramos, G. Delvene, J. I. Ruiz-Omeñaca. 2010. Incorporación de los yacimientos con huellas de dinosaurios del Jurásico asturiano (N España) en el inventario Global Geosites [Including the dinosaur tracksites from the Jurassic of Asturias (N Spain) within the Global Geosites inventory]. Comunicaciones del V Congreso del Jurásico de España

A. Cobos, R. Royo-Torres, and L. Alcalá, L. Mampel. 2010. An Iberian stegosaurs paradise: The Villar del Arzobispo Formation (Tithonian–Berriasian) in Teruel (Spain). Palaeogeography, Palaeoclimatology, Palaeoecology 293(1-2):223-236 DOI ↗

J. Company, X. Pereda Suberbiola, and J. I. Ruiz-Omeñaca. 2010. New stegosaurian (Ornithischia, Thyreophora) remains from Jurassic-Cretaceous transition beds of Valencia province (Southwestern Iberian Range, Spain). Journal of Iberian Geology 36(2):243-252 DOI ↗

H. Galiano and R. Albersdörfer. 2010. A New Basal Diplodocoid Species, Amphicoelias brontodiplodocus from the Morrison Formation, Big Horn Basin, Wyoming, with Taxonomic Reevaluation of Diplodocus, Apatosaurus, Barosaurus and Other Genera. Dinosauria International (Ten Sleep, WY) Report for September 2010

O. Mateus and J. Milàn. 2010. A diverse Upper Jurassic dinosaur ichnofauna from central-west Portugal. Lethaia 43:245-257 DOI ↗

E. Buffetaut and N. Morel. 2009. A stegosaur vertebra (Dinosauria: Ornithischia) from the Callovian (Middle Jurassic) of Sarthe, western France. Comptes Rendus Palevol 8:545-549 DOI ↗

L. Luque, L. Alcalá, and L. Mampel, M. D. Pesquero, R. Royo-Torres, A. Cobos, E. Espílez, A. González, D. Ayala, A. Aberasturi, P. Marzo, R. Alloza. 2009. Mineralogical, elemental and chemical composition of dinosaur bones from Teruel (Spain). Journal of Taphonomy 7(2-3):151-178

O. Mateus, S. C. R. Maidment, and N. A. Christiansen. 2009. A new long-necked 'sauropod-mimic' stegosaur and the evolution of the plated dinosaurs. Proceedings of the Royal Society B: Biological Sciences 276:1815-1821 DOI ↗

J. Mathews, S. Williams, and M. Bonnan, M. Henderson. 2009. The Hanksville-Burpee Quarry: new insights into a sauropod dominated bonebed in the Morrison Formation of eastern Utah. Journal of Vertebrate Paleontology 29(3, suppl.):144A

A. Pérez Garcia, B. Sánchez Chillón, and F. Ortega. 2009. Aportaciones de José Royo y Gómez al conocimiento sobre los dinosaurios de España [Contributions of José Royo y Gómez to the knowledge of the dinosaurs of Spain]. Paleolusitana 1:339-364

H. J. Siber and U. Möckli. 2009. The Stegosaurs of the Sauriermuseum Aathal DOI ↗

S. C. R. Maidment, D. B. Norman, and P. M. Barrett, P. Upchurch. 2008. Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia). Journal of Systematic Palaeontology 6(4):367-407 DOI ↗

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Stegosauria

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