The most distinctive feature of Utahceratops is its cranial ornamentation : it possessed three horns

Its most striking feature was its extremely long

from humid forests to semi-arid plains

This feature

afilados y curvados

Irritator challengeri Variant:Unprimed The most distinctive feature ofIrritator challengeri is a species of spinosaurid theropod dinosaur that lived during the Early Cretaceous period, approximately 110 million years ago, in what is now Brazil. Its name comes from the Latin "irritator," referring to the frustration of paleontologists upon discovering that the original fossil had been altered with plaster by the collectors who found it, and "challengeri" in honor of Professor Challenger, a fictional character created by