Quetzalcoatlus / Leptoceratops Variant:Unprimed This combination of derived and

This combination of derived and primitive features

an uncommon characteristic in modern crocodiles and consistent with a more active hunting style that was less dependent on aquatic ambush

como la transición de la Amazonía de un sistema de lagos y pantanos a la selva densa actual

El Rajasaurus era un depredador bípedo de tamaño mediano

Quetzalcoatlus / Leptoceratops Variant:Unprimed This combination of derived andDuring the Late Cretaceous, the terrestrial ecosystems of what is now North America supported a diversity of life forms, including both small herbivorous dinosaurs and large flying reptiles. In this context, the potential interaction between Quetzalcoatlus northropi and Leptoceratops gracilis represents an interesting example of ecological dynamics between predator and prey in semi arid Maastrichtian environments. Quetzalcoatlus, one of the largest