Bajadasaurus

The siege of Baghdad was a part of a civil war between al-Amin and al-Ma'mun for the Abbasid Caliphate of Baghdad. The siege lasted from August 812 until September 813. The siege is described in great detail by Muhammad ibn Jarir al-Tabari in his famous History of the Prophets and Kings.

Bajadasaurus is a genus of sauropod dinosaur from the Early Cretaceous epoch (late Berriasian to Valanginian stages, between 145 and 132.9 million years ago) of northern Patagonia, Argentina. It was first described in 2019 based on a single specimen found in 2010 that includes a largely complete skull and parts of the neck. The only species is Bajadasaurus pronuspinax. The genus is classified as a member of the Dicraeosauridae, a group of relatively small and short-necked sauropods. Bajadasaurus sported bifurcated (two-pronged), extremely elongated neural spines extending from the neck. Similarly elongated spines are known from the closely related and more completely known Amargasaurus. Several possible functions have been proposed for these spines in Amargasaurus; the 2019 description of Bajadasaurus suggested that they could have served as passive defense against predators in both genera. The skull was slender and equipped with around 48 teeth that were pencil-shaped and restricted to the front of the jaws. The eye openings of Bajadasaurus were exposed in top view, possibly allowing the animal to look forwards while feeding. Bajadasaurus was discovered in sedimentary rocks of the Bajada Colorada Formation, which were deposited by braided rivers. It shared its environment with other dinosaurs including the sauropod Leinkupal and different theropods.

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Bajadasaurus is a genus of sauropod dinosaur from the Early Cretaceous epoch (late Berriasian to Valanginian stages, between 145 and 132.9 million years ago) of northern Patagonia, Argentina. It was first described in 2019 based on a single specimen found in 2010 that includes a largely complete skull and parts of the neck. The only species is Bajadasaurus pronuspinax. The genus is classified as a member of the Dicraeosauridae, a group of relatively small and short-necked sauropods.

Cristian Romero (footballer, born 1998)

Aleksei Vladimirovich Rybin (Russian: Алексей Владимирович Рыбин; born 26 January 1988) is a Russian professional football player. He plays for Kuban Krasnodar.

Cristian Gabriel Romero (born 27 April 1998) is an Argentine professional footballer who plays as a centre-back for Premier League club Tottenham Hotspur, on loan from Serie A club Atalanta, and the Argentina national team. Coming through the youth system, Romero began his senior career in 2016 at Belgrano. He moved to Italy in 2018, playing for Genoa. Romero was purchased by Juventus the following season, and was sent back on loan to Genoa for one season. After being nominated Serie A Best Defender in 2020–21 with Atalanta, the club exercised the option of purchase and promptly sent him on loan to Tottenham Hotspur in the Premier League. Romero represented Argentina at youth level at the 2017 South American U-20 Championship. He made his senior debut in 2021, and was part of the squad that won the 2021 Copa América.

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Aleksei Vladimirovich Rybin

Cristian Gabriel Romero (born 27 April 1998) is an Argentine professional footballer who plays as a centre-back for Premier League club Tottenham Hotspur, on loan from Serie A club Atalanta, and the Argentina national team. Romero represented Argentina at youth level at the 2017 South American U-20 Championship. He made his senior debut in 2021, and was part of the squad that won the 2021 Copa América.

Siege of Baghdad (812–813)