creating an ecological mosaic in which a semi-aquatic lifestyle provided adaptive advantages

delfines y marsopas

with heavily reinforced vertebrae and pelvic girdles to support the armor

un Rapetosaurus

Ikrandraco avatar Variant:Primed creating an ecological mosaic inIkrandraco avatar was a pterodactyloid pterosaur from the Early Cretaceous, dated to approximately 120 million years ago (Aptian), whose remains come from the Jiufotang Formation in northeastern China. It belongs to the clade Pteranodontoidea and represents a specialized form within the piscivorous pterosaurs of lacustrine environments. It was a medium sized flying reptile, with an estimated wingspan of between 1. 3 and 1. 5 meters. Its body was