Sinornithoides youngi

† Sinornithoides youngi is the type species of Sinornithoides, a troodontid from the Iren Dabasu Formation of China. The discovery of this sleeping specimen in 1988 provided key evidence for the evolutionary link between dinosaur and bird sleeping postures.

Diet & Feeding

Carnivore

Sinornithoides youngi 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 Early Mesozoic Era

Sinornithoides youngi lived during the Cretaceous Early period of the Mesozoic Era, approximately 145,0 to 100,5 million years ago.

The Cretaceous saw continued dinosaur evolution with the rise of ornithopods and early ceratopsians. Flowering plants first appeared and began to transform terrestrial ecosystems. Spinosaurus and other large theropods lived during this time.