Irritator es conocido principalmente por un cráneo parcial bien conservado

would be alert for any sign of danger

Snout-tail length 100 mm

The Model Pose represents a specimen of Coelodonta walking across the cold plains of the northern continents during the Ice Age

Menoceras arikarense Scale:1:35 Irritator es conocido principalmente porMenoceras arikarense is an extinct species of perissodactyl mammal belonging to the Rhinocerotidae family, which lived during the early Miocene, approximately between 23 and 16 million years ago, in what is now North America. This taxon is representative of the primitive rhinoceroses of the Teleoceratina subgroup, characterized by their relatively small size and adaptations to open environments. From a morphological point of view, Menoceras arikarense