supporting the theory that many avian behaviors

as other theropods did

a height at the shoulders close to 2

higher than today

incluyendo las protuberancias y espinas

Falcatus falcatus Cenozoico supporting the theory that manyFalcatus 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