Natural Cross Champsosaur Centrum
Wonderful Naturally derived cross. An animal version of the “fairy stone”, a mineral which exhibit this natural cross. The Mineral Staurolite is the famous one as a natural cross former. The interpenetrating crystals making the multicultural symbol. Here, a now extinct animal making crosses. More or less a small croc donated one of his vertebra to the ranch fossil collection. I walk by, dig a hole and pick it up… There are in excess of 10K fossils in the pile currently. This a good palm sized vertebra. is the dorsal side. That is the spinal canal with the flexible backbone providing channel for side to side bending. Thus the hourglass shape. Commonly I find isolated disarticulated vertebra from this 6 foot long creature .
The end of the Cretaceous was a rough killing many groups of creatures. Champsosaur lived on past that punctuated extinction event. It’s a terrible index fossil lol. Birds were the only dinosaurs that survived the mass extinction that occurred right at 66 million years ago. 75 percent of all marine fauna died during this extinction. We Paleontologists suppose that an equal amount of terrestrial species failed to survive the event.
Covered in Upper Cretaceous Sands, our ranch has quite a few fossil sites. 25 microsites and one bone bed have been discovered. I even found about 20 percent of one particular Triceratops on an adjacent property. It’s not just dinosaurs. Creatures you would naturally associate with terrestrial river deposits….. Amphibian, Reptilian, Dinosaurian, Mammalian, Avian, Stingrays (fresh water), Tuna (fresh water), Molluscs, gastropods, snakes and fish fossils are all found. Leaf /vegetation found in these rocks are often carbon film but are present in the shales. The literature about these formations is extensive.
Location: Horn Sieve Beds, Hell Creek/Lance Formation: Uppermost Cretaceous, Bliss Dinosaur Ranch, Wyoming/Montana borderlands (Wyotana)
Title: Natural Cross Champsosaur Centrum