Ostafrikasaurus crassiserratus ✝

Ostafrikasaurus is a genus of theropod dinosaur from the Late Jurassic Period of what is now Tanzania. It is known only from fossil teeth discovered sometime between 1909 to 1912, during an expedition to the Tendaguru Formation by the Natural History Museum of Berlin. Eight recovered teeth were originally attributed to the dubious dinosaur genus Labrosaurus, and later to Ceratosaurus, both known from the North American Morrison Formation. Subsequent studies attributed two of the teeth to a spinosaurid dinosaur, and in 2012, Ostafrikasaurus crassiserratus was described by French palaeontologist Eric Buffetaut, who used one tooth as the holotype specimen, and referred the other to the same species. Ostafrikasaurus's generic name comes from the German word for "German East Africa", the former name of the colony in which the fossils were found, while the specific name comes from the Latin words for "thick" and "serrated", in reference to the form of the animal's teeth.