May 29
14.3" Stegosaurian Dinosaur (Adratiklit) Vertebra - Morocco
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14.3" Stegosaurian Dinosaur (Adratiklit) Vertebra - Morocco
Day 201#: Adratiklit boulahfa
Merry day thirty of Dino-December! Today's animal of the day is Adratiklit boulahfa!
Image credit: Christopher DiPiazza
This species of stegosaurian dinosaur lived during the Middle Jurassic period in what is now northern Morocco. It belonged to a subfamily of stegosaurs known as the dacentrurines, and was the first member of this group to be discovered in northern Africa, though there are a couple of species, such as Kentrosaurus and Paranthodon, that have been discovered in southern Africa. However, back in 2019, when it was first described, paleontologists actually knew very little about this dinosaur since its holotype specimen was pretty fragmentary and only consisted of a few dorsal vertebrae.
Image credit: cisiopurple on DeviantArt
Since then, a handful of other bones have been discovered from at least five different individuals, including a humerus, which paleontologists have been able to use to get an approximate size estimate of around 23 ft long for Adratiklit by comparing its humerus to that of other closely related stegosaurs. Sadly, the overall appearance of Adratiklit, including the exact size and shape of its back plates, is still currently unknown.
Adratiklit
Bashanosaurus
Bashanosaurus — рід птахотазових динозаврів з клади стегозаврів (Stegosauria), відомий по викопним решткам із середньоюрських відкладень формації Шаксимяо (Shaximiao Formation) у Китаї. Включає в себе єдиний вид – Bashanosaurus primitivus. Може бути найдавнішим відомим науці стегозавром, оскільки рештки іншого претендента на цей статус, Adratiklit з Марокко, мають приблизно такий же вік, або навіть дещо молодші.
Повний текст на сайті "Вимерлий світ":
https://extinctworld.in.ua/bashanosaurus/
Adratiklit.
Adratiklit (meaning "mountain lizard") is an extinct genus of herbivorous stegosaurian dinosaur that lived on the supercontinent Gondwana during the Middle Jurassic period (168–164 million years ago). The genus contains a single species, Adratiklit boulahfa. Its remains were found in the El Mers III Formation (Bathonian–?Callovian),[1] near Boulahfa, south of Boulemane, Fès-Meknès, north Morocco.[2]
Eurypodan dinosaurs, in particular stegosaurs, were diverse and abundant in Laurasia (nowadays the northern continents) during the Jurassic, 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 indicate the presence of eurypodan taxa there. Adratiklit is the first described eurypodan taxon from North Africa, as well as—along with Thyreosaurus—one of the oldest known stegosaurs (being similar in age to Bashanosaurus,[3] Isaberrysaura,[4] and the informally-named "Ferganastegos"[5]).[1][2]
Adratiklit boulahfa was described by Susannah C.R. Maidment, Thomas J. Raven, Driss Ouarhache and Paul M. Barrett on 16 August 2019 in an article published online in paleontological journal Gondwana Research; the article was published physically in January 2020. The holotype of Adratiklit boulahfa is a dorsal vertebra, NHMUK PV R37366. Referred specimens include three cervical vertebrae (NHMUK PV R37367 and NHMUK R37368, the latter specimen consisting of a series of two articulated bones), a dorsal vertebra (NHMUK PV R37365) and a left humerus (NHMUK PV R37007). The specimens were acquired by the Natural History Museum in the United Kingdom from fossil traders. They represent multiple individuals, probably five. While the second dorsal vertebra shares traits with the holotype, the other referrals are merely based on the fact that the material is stegosaurian. An attempt in 2018 to locate the site did not produce any relevant fossils but led to a deeper insight into the geology.[2]
The generic name Adratiklit is derived from the Berber words "adrar", meaning "mountain", and "tiklit", meaning lizard. The specific name, boulahfa, refers to the area of Boulahfa near where the specimen was said to be found.[2]
-- @dandysworldhcs Have some more.
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