Collection of fossil teeth "Spinosaurus"
Late Cretaceous epoch, Cenomanian to upper Turonian stages c. 100,5 - 93,9 million years ago, Taouz, Kem Kem Basin, Marocco, private collection from Netherlands.
Spinosaurus is a genus of spinosaurid dinosaur that lived in what now is North Africa during the Cenomanian to upper Turonan stages of the Late Cretaceous period, about 100,5 to 93,9 million years ago. The best known species is S.aegytiacus from Egypt, although a potential second species, S.maroccanus, has been recovered from Marocco. Spinosaurus is the largest of all known terrestial carnivores, other large carnivores comparable to Spinosaurus include theropods such as Tyrannosaurus, Giganotosaurus and Carcharodontosaurus. New estimates published in 2014 and 2018, supported the earlier research, findings that Spinosaurus could reach lengths of 17 meters. Latest estimates suggest a weight of 6,4 to 7,5 metric tons. The skull of Spinosaurus was long, low and narrow, similar to that of a modern crocodilian, and bore straight conical teeth with no serrations. The distinctive neural spines of Spinosaurus, which were long extensions of the vertebrae, grew to at least 1,65 meters long and were likely to have had skin connecting them, forming a sail-like structure.
This genus was known first from Egyptian remains discovered in 1912 and described by German palaeontologist Ernst Stromer in 1915. The original remains were destroyed in World War II, but additional material has come to light in early 21st century. Spinosaurus is known to have eaten fish, and most scientists believe that it hunted both terrestial and aquatic prey. Evidence suggests that it was highly semiaquatic, and lived both on land and in water much like modern crocodilians do.
Collection of three beautiful Spinosaurus teeth fragment. Age-related wear, fractures and cracks. Repaired. Dirt, dust and deposit. Size of teeth c. 4,0cm x 2,0cm, 4,0cm x 1,4cm & 3,6cm x 1,8cm. Sell as a set.
American Museum of Natural History
Greshko Michael, National Geographic, September 2020.
Michael Hopkin, Nature, February 2006.