Pachycephalosaurs (family)
Pachycephalosaury (Pachycephalosauridae) - a group of dinosaurs from the pachycephalosaurs infrastue. Pachycephalosaurs had thick, domed heads.
Classifications
Row - Bird-pelvic dinosaurs
Suborder - Cerapods
Infraorganism - Pachycephalosaurs
Family - Pachycephalosaurs
Genus - Stegoceras
Genus - Pachycephalosaurus
Genus - Stygimoloch
Type - Mikrocefal
Genus - PrenocephalyPachycephalosaurs appeared on earth about 130 million years ago and survived until the end of the reptile era. Their sizes ranged from small animals (Wannanosaurus, 60 cm) to giant reptiles (Pachycephalosaurus, 4.5 m). Their remains have been found in North America, Asia and Europe, but are unknown from the southern hemisphere.
See also
Homalocephaly
Pachycephalosaurs