Behavioral evidence Fossils of the troodonts and demonstrate that some dinosaurs slept with their heads tucked under their arms.
Jede Bestellung unterstützt den unabhängigen Künstler, der das Design erstellt hat.
Conifers and were the most common plants.
A major change in the Early Cretaceous, which would be amplified in the Late Cretaceous, was the evolution of.