Las aletas delanteras eran largas y anchas

a semi-aquatic predator of exceptional size that inhabited the river systems of North Africa

marking the early establishment of the group's typical characteristics

en el rango de tiempo conocido como el Maastrichtiano

queenslandicus

Thylacinus cynocephalus Variant:Hand-painted Las aletas delanteras eran largasThylacinus cynocephalus, known as the thylacine or "Tasmanian wolf," was a recently extinct carnivorous marsupial whose general morphology remarkably converged with that of placental canids. Its cranial anatomy constitutes one of the species' most characteristic and functionally relevant aspects. The skull of Thylacinus cynocephalus was elongated, narrow, and relatively low, with an almost straight dorsal profile. It could reach approximately 2124 cm