it had a crescent-shaped tail

largas y robustas

rather than by active propulsion with highly efficient flippers

Gastonia burgei fue un dinosaurio acorazado perteneciente al grupo de los anquilosaurios

Linhenykus monodactylus Antarctopelta it had a crescent-shaped tailLinhenykus monodactylus was a small alvarezsauroid theropod dinosaur from the Late Cretaceous, originating from the Wulansuhai Formation in Inner Mongolia, China. Formally described in 2011 from specimen IVPP V17608, this animal represents one of the most extreme cases of anatomical specialization known among non avian dinosaurs. Its name refers to the Linhe region, near the discovery area, while the epithet monodactylus alludes to its most singular