Temporal range: Middle Jurassic
Maidment et al., 2019
Maidment et al., 2019
Adratiklit is an extinct genus of herbivorous stegosaurian dinosaur that lived in the supercontinent Gondwana during the Middle Jurassic Period. The type and only known species is A. boulahfa. Its remains were found in the El Mers Group, probably in the El Mers II Formation (Bathonian), near Boulahfa, south of Boulemane, Fès-Meknes, Morocco.
Eurypodan dinosaurs, in particular stegosaurs, were diverse and abundant in Laurasia (nowadays the northern continents), but their remains are extremely rare in deposits of Gondwana, nowadays the southern continents. Nevertheless, the existence of fragmentary remains and trackways in the deposits of Gondwana indicates the presence of eurypodan taxa there. Adratiklit is the first described eurypodan taxon from north Africa and the oldest definitive stegosaur from anywhere in the world.
Discovery and naming
Adratiklit boulahfa was described by Susannah C.R. Maidment, Thomas J. Raven and Paul M. Barrett on 16 August 2019 in an article published online in paleontological journal Gondwana Research. The holotype and only known specimen of Adratiklit boulahfa is a dorsal vertebra, NHMUK PV R37366.
The generic name Adratiklit is derived from "Adras", a Berber word for "mountain", and "tiklit", a Berber word for lizard. The specific name, boulahfa, refers to Boulahfa near where the specimen was found.
Adratiklit is a basal stegosaurian. It is more closely related to the European stegosaurs Dacentrurus and Miragaia than it is to the southern African taxa Kentrosaurus and Paranthodon. This places it in the subfamily Dacentrurinae, which was previously thought to be confined only to the Late Jurassic of Europe.
- Maidment, Susannah C. R.; Raven, Thomas J.; Ouarhache, Driss; Barrett, Paul M. (2019-08-16). "North Africa's first stegosaur: Implications for Gondwanan thyreophoran dinosaur diversity". Gondwana Research. 77: 82–97. doi:10.1016/j.gr.2019.07.007. ISSN 1342-937X.
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Category:Stegosaurs Category:Fossil taxa described in 2019
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