5.8" Slab Of Agatized Dinosaur Bone (Kritosaurus) - Texas

This is a gorgeous, 5.8" wide slab of agatized dinosaur bone (gembone) from the Aguja Formation of Texas. This bone came from Kritosaurus navajovius, a large Hadrosaur known from the Formation. The slab is been polished on one side and comes with a display stand.

Agatized or agate replaced dinosaur bone is a rare form of fossilized dinosaur bone where the original fossilized bone (typically permineralized with calcite) has been re-mineralized (replaced/substituted) with silica-type compounds (agate, jasper, chalcedony, or opal). It's a fairly unusual occurrence and nearly all of the agatized dinosaur bone on the market comes from the Morrison Formation of Utah/Colorado.

This specimen was collected within the past year on private deeded property in Brewster County, Texas. You won't see any other dinosaur material from the Aguja & Javelina Formations for sale because nearly all of the formation lies within the boundaries of a national park or in Mexico which can not be collected. One of our partners was lucky enough to purchase several hundred acres of ranch land in Texas containing a good exposure of these formations and we will be offering more material from the locality in the future.

Kritosaurus navajovius
Brewster County, Texas
Aguja Formation
5.8 x 4.7", .45" thick
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