New Members Shoeling Posted July 15 New Members Share Posted July 15 Found in Polk County, Des Moines, Iowa USA Link to comment Share on other sites More sharing options...
SawTooth Posted July 15 Share Posted July 15 They both appear to be bone, the second looks like a vertebra, but that's as far as my id can go... 1 1 Link to comment Share on other sites More sharing options...
Fossildude19 Posted July 15 Share Posted July 15 Pictures are on the small side. 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Carl Posted July 16 Share Posted July 16 Do you know what time period these are from? Link to comment Share on other sites More sharing options...
New Members Shoeling Posted July 16 Author New Members Share Posted July 16 Sorry I do not, thanks, Chris Link to comment Share on other sites More sharing options...
Carl Posted July 17 Share Posted July 17 Looks like Polk Co. is entirely Pennsylvanian. Bones like this are almost certainly not Pennsylvanian. That leaves a few possibilities: 1. Glacially transported material from farther north 2. Specimens from Pleistocene surface deposits 3. Anthropogenically transported material (either pre-colonial Native Americans, which would mean they are from North America, or modern people, which would mean they literally could have come form anywhere) I think they look way to mineralized and weathered to likely be Pleistocene, so one of the other choices seem best. The long fragments will be very hard to ID but the vertebra may have enough detail to narrow it down a bit. As it is, I can't confidently say mammal or reptile, but I think it's one of those. 1 Link to comment Share on other sites More sharing options...
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