Carcharodontosaurus (Shark toothed lizard)
Carcharodontosaurus (Shark toothed lizard)
Named By : Ernst Stromer - 1931
Diet : Carnivore
Size : Estimated 12-15 meters long
Type of Dinosaur : Large Theropod
Type Species : C. saharicus (type). C. iguidensis.
Found in : Algeria – Continental Intercalaire Formation, Brazil – Alcântara Formation?, Egypt – Baharîje Formation, Mut Formation, Morocco – Aoufous Formation, Kem Kem Formation, Niger – Continental Intercalaire Formation, Echkar Formation, Elrhaz Formation, and Tunisia – Chenini Formation, Continental Intercalaire Formation.
When it Lived : Late Cretaceous, 98-94 million years ago
Carcharodontosaurus /,ka:rk@roU,dantoU’so:r@s/ is a genus of large carcharodontosaurid theropod dinosaur that existed during the Cenomanian stage of the Late Cretaceous Epoch in Northern Africa. It is believed to comprise two types: C. saharicus and C. iguidensis, which are among the largest of theropods that are nearly as big as or more as Tyrannosaurus, Giganotosaurus, and Spinosaurus.
The Genus Carcharodontosaurus is named for the shark’s genus Carcharodon which is composed from the Greek karchar[os[os] (karkharos that means “jagged” or “sharp”) and Odon (odon, “teeth”) as well as the suffix”-saurus” (“lizard”).
Marco Auditore, published by Nizar Ibrahim, Paul C. Sereno, David J. Varricchio, David M. Martill, Didier B. Dutheil, David M. Unwin, Lahssen Baidder, Hans C. E. Larsson, Samir Zouhri, Abdelhadi Kaoukaya, CC BY 4.0, via Wikimedia Commons
The year 1924 saw the discovery of two dental teeth were discovered in the Continental intercalaire of Algeria and showed what at the time were distinct features. The teeth were identified in Deperet as well as Savornin (1925) to be a representation of the first taxon of a new species, which they called Megalosaurus Saharicus, and later classified within the Dryptosaurus subgenus. A few years later the Paleontologist Ernst Stromer described the remains of a skull fragment and skeleton that was found in Cenomanian aged rocks from the Bahariya Formation of Egypt (Stromer 1931) The first time they were excavated was by the team in 1914. Their remains comprised of a skull fragment teeth, vertebrae, claw bones, and a variety of leg and hip bones. The teeth of this new discovery were similar to the ones described in the works of Deperet and Savornin and resulted in Stromer preserving the name of the species saharicus however deciding to establish an entirely new genus for the species, Carcharodontosaurus, due to the striking resemblance they have to the teeth of the Carcharodon (Great White Shark).
The fossils mentioned by Stromer were destroyed in 1944 during World War II, but another, more complete skull was discovered inside the Kem Kem Group of Morocco in the course of an expedition led Paleontologist Paul Sereno in 1995, close to the Algerian border and in the same area in which the teeth described in Deperet as well as Savornin (1925) had been discovered. The teeth that were found in the new skull were similar to the ones that were described in Deperet as well as Savornin (1925) as well as Stromer (1931) as well as the remainder of the skull was in line with the skull was described by Stromer. This skull was classified as the neotype of Brusatte as well as Sereno (2007) and also identified a new type that is a species of Carcharodontosaurus, C. iguidensis from the Echkar Formation of Niger, different in comparison to C. saharicus in aspects of the skullcase and maxilla.
Taxonomy and classification of Carcharodontosaurus was discussed in Chiarenza as well as Cau (2016) and Cau (2016), who observed that the neotype of C. saharicus was similar however, it was distinct from the holotype. This is problematic since the Holotype that is C. saharicus is more closely connected to the holotype of C Iguidensis than to the neotype SGM-Din 1. The authors also identified the referred material of C. iguidensis as belonging to Sigilmassasaurus and a non-carcharodontosaurine, and therefore chose to limit C. iguidensis to the holotype pending future research.
Carcharodontosaurus has been described as one of the longest and most massive of carnivore dinosaurs. There are a variety of researchers putting forth measurements of the length for C. Saharicus, which ranges between 12.3 and 13.3 metres (39 and 44 feet) as well as weight estimations ranging from 6.2 and 15.1 tonnes (6.8 up to 16.6 short tons). In 2016, Molina-Perez & Larramendi gave a length of 12.8 meters (42 feet) with a mass that was 7.8 meters (8.6 shorter tonnes) for the Neotype of C. Saharicus. They also gave 11 meters (36 feet) and the weight of 5.2 meters (5.7 shorter tons) for the referred tooth of C. Iguidensis.
Carcharodontosaurus were carnivores that had huge jaws and serrated teeth, up to 8 inches long. A skull length of 1.42-1.6 millimeters (4.7-5.2 feet) was restored to the Neotype of C. Saharicus. The most well-known skull is that of a different carcharodontosaurid dinosaur, which is closely similar Giganotosaurus (with skull length estimates of up to 1.95 meters (6.4 ft))[12however, it is not confirmed. 11 Gregory S. Paul estimates Carcharodontosaurus iguidensis’s length at 10 meters (33 feet) as well as 4 tons (4.4 small tons).