Ursus spelaeus Variante:Imprimado Los dientes estaban organizados en

Los dientes estaban organizados en baterías dentales simples

Xiphactinus's skull was robust and was equipped with numerous conical and sharp teeth

revealing a more specialized form adapted to the ecosystems of southern Gondwana

suggesting an animal capable of moving with relative agility for its size

Ursus spelaeus Variante:Imprimado Los dientes estaban organizados enUrsus spelaeus, commonly known as the cave bear, was a large ursid from the European Pleistocene and one of the most emblematic species of Quaternary megafauna. It inhabited extensive regions of Europe during the Middle and Late Pleistocene, particularly temperate, cold and mountainous environments associated with open woodlands, grasslands, valleys and karst systems. Its specific name, spelaeus, refers directly to caves, as its remains are frequently