Spinosauridae

Spinosauridae is a family of theropod dinosaurs characterized by elongated, crocodile-like snouts and conical teeth. Many members show adaptations associated with catching fish.

Theropoda: Theropoda is a major dinosaur group that includes birds and many extinct bipedal predators. Spinosaurids are theropods, sharing this group's ancestry and basic body plan.
Spinosaurus: Spinosaurus is a large Cretaceous theropod known for its elongated jaws and tall sail-bearing back. It is the best-known member and gives the family its most familiar image.
Piscivory: Piscivory is a feeding strategy in which animals eat fish. Fish remains and specialized jaws support a substantial role for fish in some spinosaurid diets.
Crocodylomorpha: Crocodylomorpha is a reptile group that includes living crocodilians and their extinct relatives. Their long-snouted skulls resemble spinosaurid skulls despite distant ancestry and different anatomy.
Ernst Stromer: Ernst Stromer was a German paleontologist who described Spinosaurus from Egyptian fossils in the early twentieth century. His work established the best-known spinosaurid, though its original remains were later destroyed.
Spinosaurinae: Spinosaurinae is a subfamily of spinosaurids that includes Spinosaurus and Suchomimus. This subgroup contains several well-known spinosaurids with especially elongated snouts.
Baryonyx: Baryonyx is a Cretaceous spinosaurid discovered in England, notable for its large hand claw. Its fossils preserve direct evidence of a spinosaurid's diet and anatomy.
Spinosaurid jaw mechanics: Spinosaurid jaw mechanics concerns how their long, narrow jaws and teeth handled prey. Their skull shape and tooth form suggest gripping prey rather than slicing it apart.
Deinocheiridae: Deinocheiridae is a family of unusual theropods that includes the large dinosaur Deinocheirus. Some members shared aquatic or fish-eating associations without belonging to Spinosauridae.
Baryonyx walkeri discovery: The discovery of Baryonyx walkeri was the 1983 English fossil find that revealed a distinctive long-snouted theropod. The nearly complete skeleton transformed understanding of spinosaurid anatomy and distribution.

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AbelisauridaeCompared with: Their specialized skulls and feeding ecology differ from the robust-jawed abelisaurid pattern.