|Named By:||T. Ohashi & P. M. Barrett in 2009|
|Time Period:||Early Cretaceous|
|Location:||Japan, Ishikawa Prefecture - Kuwajima Formation|
|Size:||Unknown due to lack of remains|
|Fossil(s):||Partial cranial remains and left mandible (lower jaw)|
|Classification:||| Chordata | Dinosauria | Ornithischia | Marginocephalia | Ceratopsia ||
Albalophosaurus (meaning 'white crest lizard') is a genus of ceratopsian ornithischian dinosaur. It was described in 2009 from remains found in 1997 by Yoshinori Kobayashi from the Kuwajima Formation of central Japan, outcropping in Hakusan in the Ishikawa Prefecture. The holotype, SBEI 176, consists of cranial bones from an incomplete, disarticulated skull and left lower jaw thought to belong to a single individual. The type species is named A. yamaguchiorum. The generic name is derived from Latin albus, "white", and Greek lophos (lophos), "crest", a reference to the snow-covered crest of Mount Hakusan. The specific name honours Ichio Yamaguchi en Mikiko Yamaguchi, who discovered and prepared many fossils from the site.
The exact age of the strata from which the remains of Albalophosaurus have been found is not known because of the lack of marine beds containing index fossils, but the Kuwajima Formation is known to have formed during the Early Cretaceous, most likely after the Berriasian and before the Barremian based on the ages of underlying and overlying formations. More recent studies suggest that the age of the Kuwajima Formation is most likely Valanginian--Hauterivian, although the exact age is still uncertain.