with an elongated structure and a wide nasal cavity that may have allowed it to produce sounds for communication

Longitud 54 mm

Algunos científicos han sugerido que las estructuras filamentosas de Longisquama podrían ser precursores de las plumas

como una cabeza grande con dientes afilados y curvados

typical of ichthyosaurs

Arsinoitherium zitteli Regaliceratops with an elongated structure andArsinoitherium zitteli is an extinct species of placental mammal that lived during the late Eocene to early Oligocene period, between 36 and 30 million years ago, in what is now North Africa, especially in the region that currently corresponds to Egypt. This animal belongs to the Arsinoitheriidae family and is characterized by its imposing size and distinctive horns. The body of Arsinoitherium zitteli was robust and massive, with a length that reached