Duonychus tsogtbaatari Megalosaurus El cráneo de Ichthyostega era

El cráneo de Ichthyostega era aplanado y alargado

lo que indica que su defensa probablemente dependía más de su agilidad que de estructuras ofensivas prominentes

the presence of Australodelphis in Antarctic latitudes suggests that toothed whales had already colonized cold-water habitats long before the consolidation of modern ice caps

La fórmula dental y la estructura de los premolares y molares sugieren una eficiencia en el procesamiento de hojas

Duonychus tsogtbaatari Megalosaurus El cráneo de Ichthyostega eraBetween 95 and 90 million years ago, during the Late Cretaceous (CenomanianTuronian) , in what is now the Gobi Desert in Mongolia, lived a peculiar therizinosaur called Duonychus tsogtbaatari . This animal inhabited a hot, arid environment, dotted with rivers and low vegetation, where it coexisted with other herbivorous dinosaurs and medium sized predators. Duonychus measured around 3 meters in length and weighed about 260 kilograms , making it a