01045 - Well Preserved 0.35 Inch Brachylophosaurus Dinosaur Tooth Brittlestar we can observe a fly

we can observe a fly (Trychoptera - Caddisfly)

The rostrum most likely would have had electrosensors to detect food in the water below them like most modern sharks and some rays

You can see how that fly is bodily associated with another insect that can not be well identified

Without a doubt

01045 - Well Preserved 0.35 Inch Brachylophosaurus Dinosaur Tooth Brittlestar we can observe a flyMagnificent tooth of the Hadrosaurid dinosaur Brachylophosaurus. It comes from the famous sites of the Judith River Formation in Montana (Campanian stage, Upper Cretaceous). This bipedal dinosaur coexisted in the same ecosystems with the famous T Rex. This tooth does not have any type of restoration or repair. It is a magnificent acquisition for any collection.