W0rleyg0ld Posted October 1, 2017 Share Posted October 1, 2017 I am not a specialist in any way. My son found this rock digging in our driveway. He is super excited and I am curious to see what the professionals identify it as. Link to comment Share on other sites More sharing options...
ynot Posted October 1, 2017 Share Posted October 1, 2017 Welcome to TFF! It looks like the print of a crinoid stalk / columnal. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
W0rleyg0ld Posted October 1, 2017 Author Share Posted October 1, 2017 Amazing. How old do you think it is?? Link to comment Share on other sites More sharing options...
ynot Posted October 1, 2017 Share Posted October 1, 2017 They became scarce after the permian extinction event, but are still in today's oceans, so without knowing where the rock came from it is hard to be sure of an age on this one. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Douvilleiceras Posted October 1, 2017 Share Posted October 1, 2017 According to the Missouri Department of Natural Resources, the area which you live in is Tertiary/Quaternary, however, the majority of the state is Paleozoic, and the rocks might have been brought in from another location. Here's a helpful map for Missouri: http://dnr.mo.gov/pubs/pub2514.pdf And a fact sheet about Crinoids: https://dnr.mo.gov/pubs/pub660.pdf Regards, Jason "Trilobites survived for a total of three hundred million years, almost the whole duration of the Palaeozoic era: who are we johnny-come-latelies to label them as either ‘primitive’ or ‘unsuccessful’? Men have so far survived half a per cent as long." - Richard Fortey, Trilobite: Eyewitness to Evolution. Link to comment Share on other sites More sharing options...
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