Spinosauridae
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Spinosauridae is 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,
Spinosauridae Diversity
Elements of the holotype specimen of Spinosaurus aegyptiacus, as illustrated by Ernst Stromer in 1915
Closeup of the teeth of Suchomimus
Reconstructed foot bones of Spinosaurus; note the straight claws and enlarged hallux (first toe) touching the ground
Irritator
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Irritator is a genus of spinosaurid dinosaur that lived in what is now Brazil during the Albian stage of the Early Cretaceous Period, about 113 to 110 million years ago. It is known from a nearly comp
Spinosauridae
…known spinosaurids are hindered by the lack of good material, all known spinosaurids were large animals. The smallest genus known from good material is Irritator, which was between 6 and 8 meters (20 and 26 feet) long and around 1 metric ton (1.1 short tons; 0.98 long tons) in weight. Ichthyovenator, Baryonyx…
Irritator challengeri mount 01
Spinosaurine pelvis and sacral vertebrae (specimen MN 4819-V), National Museum of Rio de Janeiro
Head of an Indian gharial, which has similarities to the head of Irritator
Closeup of reconstructed skull and neck