incluyendo las protuberancias y espinas

supporting the theory that many avian behaviors

a lineage of ichthyosaurs specialized in aquatic life

el sur de África

which would have favored the evolution of large herbivores capable of traveling long distances in search of food

Falcatus falcatus Cenozoico incluyendo las protuberancias y espinasFalcatus falcatus was a small but extraordinary cartilaginous fish that lived during the Early Carboniferous , approximately 325 million years ago , in what is now North America. It is an extinct species of shark belonging to the group of holocephalans, close relatives of current chimaera, although with unique anatomical characteristics that make it one of the most peculiar fish of its time. Its name, Falcatus , derives from Latin and means "curved