pachycephalosaur

English

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From the New Latin genus name Pachycephalosaurus, equivalent to pachy- (“thick”) +‎ cephalo- (“head”) +‎ -saur (“lizard”).

pachycephalosaur (plural pachycephalosaurs)

Any of a group of herbivorous dinosaurs, of the genus Pachycephalosaurus from the late Cretaceous period. [from 20th c.]
- 2016 September 28, David Hone, “‘Three-eyed’ extinct reptile was a bone-headed dinosaur mimic 100 million years early”, in The Guardian‎^[1]:
  One could almost call Triopticus a mimic were it not for the fact that it dates to 228-220 million years ago, meaning that it predates the pachycephalosaurs by over 100 million years.

dinosaur of the genus Pachycephalosaurus