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Spinosaurus is known to have eaten fish and small to medium terrestrial prey as well. [5] Evidence suggests that it was semiaquatic; how capable it was of swimming has been strongly contested. Spinosaurus's leg bones had osteosclerosis (high bone density), allowing for better buoyancy control.
The holotype (1912VIII61) consists of three caudal vertebrae, a partial scapula, and some limb bones, all of which were discovered in the Bahariya Formation of Egypt between 1910 and c. 1913 by Ernst Stromer and Richard Markgraf [1] and the holotype was sent to Munich, Germany in 1915 to be studied at the same time the holotype of Spinosaurus aegyptiacus was described.
In April 1944, the holotype of S. aegyptiacus was destroyed during an allied bombing raid in World War II. [16] [17] In 1934, Stromer referred a partial skeleton also from the Bahariya Formation to a new species of Spinosaurus; [18] the specimen has since been alternatively assigned to another African spinosaurid, Sigilmassasaurus. [19]
Articles related to the Spinosauridae, a clade or family of tetanuran theropod dinosaurs comprising ten to seventeen known genera.Spinosaurid fossils have been recovered worldwide, including Africa, Europe, South America and Asia.
The best known species is S. aegyptiacus from Egypt, although a potential second species S. maroccanus has been recovered from Morocco. Spinosaurus may be the largest of all known carnivorous dinosaurs. Estimates published in 2005 and 2007 suggest that it was 12.6 to 18 metres (41 to 59 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons ...
Ernst Freiherr Stromer von Reichenbach (born on 12th of June, 1871 in Nürnberg, died on 18th of December, 1952 in Erlangen) was a German paleontologist best remembered for his expedition to Egypt, during which the discovery of the first known remains of Spinosaurus was made.
The authors also proposed Spinosaurus maroccanus as a junior synonym of Sigilmassasaurus, and rejected the proposal of a Spinosaurus aegyptiacus neotype. [4] A study by British paleontologist Thomas Arden and colleagues in 2018 concluded that Sigilmassasaurus was a valid genus and formed a tribe with Spinosaurus termed Spinosaurini.
Carcharodontosaurus saharicus Deltadromeus agilis Rebbachisaurus garasbae Rugops primus Spinosaurus aegyptiacus reconstruction: Carcharodontosaurus [3] C. saharicus [3] Ksar-es-Souk province, Morocco. [3] Douira Formation Partial skull, including braincase, nasals, postorbitals, jugals, left lacrimal and right maxilla with most teeth. [39]