Pachycephalosaurus

Pachycephalosaurus (s; meaning `thick headed lizard,` from Greek pachys-/παχυς- `thick`, kephale/κεφαλη `head` and sauros/σαυρος `lizard`) is a genus of pachycephalosaurid dinosaurs. The type species, P. wyomingensis, is the only known species. It lived during the Late Cretaceous Period (Maastrichtian stage) of what is now...
Found on http://en.wikipedia.org/wiki/Pachycephalosaurus

Pachycephalosaurus

genus of large and unusual dinosaurs found as fossils in deposits of North America dating to the Late Cretaceous Epoch (97.5 to 66.4 million years ... [1 related articles]
Found on http://www.britannica.com/eb/a-z/p/1

Pachycephalosaurus

Pachycephalosaurus (păk"isef"ulōsôr'us) [Gr., = thick-headed lizard], bipedal herbivorous dinosaur of the late Cretaceous period, approximately 68–65 million years ago. Its distinguishing characteristic was a very heavy dome-shaped skull that was up to 10 in. (25 ...
Found on http://www.infoplease.com/ce6/sci/A0837233.html

Pachycephalosaurus

Pachycephalosaurus was a dinosaur of the Cretaceous period. Pachycephalosaurus was about eight metres long, walked on its hind legs and was furnished with a thick top to the skull.
Found on http://www.probertencyclopaedia.com/browse/BP.HTM

Pachycephalosaurus

Pachycephalosaurus, Pachycephalosaur A “thick-headed lizard” from Late Cretaceous Montana. Named by paleontologist Barnum Brown (1873-1963) and Schlaikjer in 1943.
Found on http://www.wordinfo.info/words/index/info/view_unit/2727/25
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