6.9" Partial Hadrosaur Rib With Crocodile Coprolite - Texas

This is a very interesting association just collected from the Aguja Formation in Texas. It's partial rib of a Hadrosaur with a 2.1" long crocodile coprolite (fossilized turd) stuck to it. The coprolite was found in place like this, it was not added to the piece.

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 the borders of Big Bend National Park or in Mexico, where laws prevent collection of fossils for sale. One of our partners was lucky enough to purchase several hundred acres of ranch land in Texas containing a good exposure of these formations.

These formations are equivalent age to the Judith River Formations in the Northern US and Alberta, Canada. Because relatively little collecting has been done on these formations in Texas, most of the species remain undescribed. Our partner has been putting important material into research collections and working with museums and researchers, so in the coming years their work will help lead to formal descriptions for these dinosaurs.

Unidentified Hadrosaur
Javelina Creek Ranch, Brewster County, Texas
Upper Aguja Formation
Rib 6.9" wide, Coprolite 2.1" long
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