DacentrurinaeDinosauriaEurypodaGenasauriaLate JurassicNorth AmericaOrnithischiaStegosauriaStegosauridaeThyreophora

Alcovasaurus longispinus

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Dinosaur: Alcovasaurus longispinus

Jurassic: 154.8–145 Ma
Type: Stegosaur

Length*:6.1 m20.0 ft
Weight*:1.5 t3,307 lb
ESR: 2.5 / 4 (estimated size reliability)
*The largest known specimen


Period

Epoch: Late Jurassic
Stage: Kimmeridgian-Tithonian
Years: 154.8–145 Ma

Details

Status: valid
Author: Galton & Carpenter
Year: 2016

Distribution

Area: North America
Country: USA
Region: Wyoming
Formation: Morrison


Sources

Material: Forty two vertebrae, sacrum, three anterior caudal centra, parts of both ilia and ischia, left pubis, right femur and dermal caudal spines. Referred large spike ?
References: Francisco Costa & OctÃvio Mateus (2019) 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.

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