SOME FOSSILS FROM THE ABRIGO FORMATION, PIMA CO., ARIZONA
Photos by Richard Hill
A possible cystoid in the abrigo and close-up from a different angle
This fossil is only about three to four millimeters across.
A "V" shaped hyolithid with the round operculum on the top. It looks
much like a fossil ice cream cone here.
A close-up of the operculum (about 3mm across) seen here as an upside
down omega shape.
A cast of a hyolithid.The previous hyolithid can be seen to the right.
Several of the tiny brachiopods (about 1mm across or less) that are
abundant in some of the rocks are circled in pencil here.
A close-up of one such brachiopod.
Another close-up of one such brachiopod.
Me in the field on 12/30/99 looking at Abrigo pieces.
(Photo by Chris Schur)