Elongatoolithus sigillarius

† Elongatoolithus sigillarius is an oospecies of oviraptorosaurian eggs from the Late Cretaceous of Mongolia, its species name sigillarius ('sealed' or 'stamped') possibly alluding to the fine surface ornamentation of the eggshell. Clutches from the Gobi Desert show the characteristic paired-row arrangement of elongatoolithid nests. The Mongolian elongatoolithid fauna is among the most diverse globally, with several oospecies co-occurring in the same horizons, suggesting multiple sympatric nesting oviraptorid species.

Diet & Feeding

Carnivore

Elongatoolithus sigillarius 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

Elongatoolithus sigillarius 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.