Segisaurus halli

† Segisaurus halli is the type species of Segisaurus, a lightly built coelophysoid from the Navajo Sandstone of Arizona. Its hollow limb bones are particularly notable, being among the first dinosaurs identified with this avian-like feature.

Diet & Feeding

Carnivore

Segisaurus halli was a meat-eating predator. Carnivorous dinosaurs were active hunters or scavengers, equipped with sharp teeth and claws for catching and consuming prey. They occupied the top of the food chain in their ecosystems.

Time Period

Jurassic Early Mesozoic Era

Segisaurus halli lived during the Jurassic Early period of the Mesozoic Era, approximately 201.4 to 174.7 million years ago.

After the Triassic-Jurassic extinction, dinosaurs rapidly diversified and became the dominant land vertebrates. Early sauropods and theropods began to evolve larger body sizes.