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

Slab Of Agatized Dinosaur Bone (Kritosaurus) - Texas #190192

This is a gorgeous, 6.7" 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 and Javelina Formations for sale because nearly all of the formations lie within the boundaries of Big Bend National Park, where fossils may not be collected, or in Mexico, where fossils cannot be commercially traded. 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.