Reptile Fossils
Cochise College 
Photos of Fossils
Geology Home Page

Roger Weller, geology instructor   copyright 2011-R.Weller

mosasaur bone replaced by opal-8
vertebrae-end view showing fire opal-closer view
Andamooka, Australia


mosasaur                                                                                                                                       694a

Photo is copyright free for non-commercial educational uses. CC-BY-NC 
Just credit photo to R.Weller/Cochise College.

Opal specimen courtesy of Opex Opal
Dagbjorn Johnson
P.O. Box 50548, Santa Barbara, California 93150