Arriagadoolithus patagoniensis

†Arriagadoolithus patagoniensis is a fossil egg ootype from the Late Cretaceous of Neuquén Province, Patagonia, Argentina. These elongated eggs with distinctive shell microstructure are attributed to a theropod dinosaur, possibly an abelisaurid or large coelurosaur. The discovery of intact egg clutches in Argentine deposits contributes to understanding reproductive biology and nesting behaviour of Gondwanan theropods.

Diet & Feeding

Carnivore

Arriagadoolithus patagoniensis 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

Cretaceous Late Mesozoic Era

Arriagadoolithus patagoniensis lived during the Cretaceous Late period of the Mesozoic Era, approximately 100.5 to 66.0 million years ago.

The final age of dinosaurs, featuring iconic species like Tyrannosaurus rex, Triceratops, and Velociraptor. Dinosaurs reached their peak diversity before the catastrophic asteroid impact at the Chicxulub crater ended the Mesozoic Era.