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My family calls this a petrified egg, but a researcher called it fossilized (well, it is all speculative on what the heck it is). What would be the difference, or is that the same thing, fossilized and petrified? I googled it and it said there wasn't a distinction. Also looking for any info on what you think this egg might be, and wanted to share it with the community too. When I was growing up, once a year my mom would get out this petrified egg, and my brothers and I were allowed to hold it. It was always a very special treat! We would wrap a magazine around it, hold it up to the light, and we could see through it a little bit. My grandfather found it while digging a well on his ranch in Colorado. I had my mom and Uncle Keith write a note about the egg a few years ago. Uncle Keith use to carry it around with him when he was a kid. He even took his nail and dug a small hole in the crust. It's about 3" long, (bigger than a chicken egg), and has a hard rough crust. I have included an email from the Denver Museum, and from the University of Riverside, California about the egg. I feel very blessed to be its keeper. Thank you in advance, Kathy

Finally ... a short trek on the open prairie of Eastern Colorado and into a slice of the Cretaceous period. This was my first true jaunt since my move from the East coast and it was a welcome change to my normal routine. My journey really began several years ago when I purchased some shark teeth from a fossil forum member in Colorado. He regularly visits a site on private land in Eastern Colorado that contains (what we think) are exposures of the Fox Hills fm. , and are chock full of marine fossils from that time period. I contacted him several weeks after I arrived, desperate to get away from civilization, and honestly just looking for someone I can chat with about geeky fossil stuff. The rolling hills of harvested wheat and corn stretched as far as the eye could see.... The exposure with the most fossil concentrations sat in a rust colored band of loose sand/sandstone. The best pockets contained shells where the teeth and bone settled. I was there without most of my usual equipment. I wasn't sifting or digging for much more than an hour before we had to leave and came home with plenty of matrix and fossils to keep me busy for several weeks. Shrimp-like trace fossils. As well as Squatina sp. and Sand Tiger Shark, Carcharias sp. teeth .. as well as small fish teeth, small fish vertebra etc. can be found. Good thing he had some small screens or all of these wonderful finds would still be on the sandy slope. Average size for these shark teeth is about 10mm. Cheers, Brett PS. I'll wash the matrix and post any additional micro-fossils here.

I found this in Eastern Colorado between Denver and Ft Morgan I thought it was mudstone, and had a lapidary cut it so I could see a cross section wondering if it could possibly be coprolite this piece is 5x4x4 inches -12x10x10 cm and if it doesn't show well in the images, it is twisted in appearance