Lucid_Bot Posted September 9, 2023 Share Posted September 9, 2023 Hi everyone. I was up in northwest Pennsylvania a few days ago seeing some friends and found this wild thing on their property. It's not my usual hunting grounds and I wasn't particularly looking for fossils at the time, so I never bothered to do research on the area. What I can tell you is that it was found in northern Crawford County, PA, which I believe is Devonian (but may also be Mississippian). Nearby were some brachiopods in sandstone. If extra pictures are needed, just let me know. Please help! Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted September 9, 2023 Share Posted September 9, 2023 In the photos it looks like a giant clam shell edge. 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Lucid_Bot Posted September 9, 2023 Author Share Posted September 9, 2023 4 minutes ago, Mark Kmiecik said: In the photos it looks like a giant clam shell edge. Wow. Not something I even considered, but I can totally see that. Thanks for the response. Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted September 9, 2023 Share Posted September 9, 2023 Just now, Lucid_Bot said: Wow. Not something I even considered, but I can totally see that. Thanks for the response. Don't get too excited -- I'm probably way off. Just saying what the shape reminds me of. Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 9, 2023 Share Posted September 9, 2023 Trace fossil of some sort for me. Not sure about what type, but I will look at some of my references. 3 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "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...
TqB Posted September 9, 2023 Share Posted September 9, 2023 (edited) Something like one of the many variants of Psammichnites maybe. https://www.researchgate.net/figure/Psammichnites-implexus-A-Specimen-displaying-meandering-tendency-but-exhibiting_fig3_232859561 Edited September 9, 2023 by TqB 3 Tarquin Link to comment Share on other sites More sharing options...
piranha Posted September 9, 2023 Share Posted September 9, 2023 It compares well with Cochlichnus isp. The figured example is from the Devonian Chagrin Shale of Ohio (scale bar = 1 cm). Feldmann, R.M. & Hackathorn, M. (editors) 2005 Fossils of Ohio: Geological Survey Bulletin, 70:1-577 3 Link to comment Share on other sites More sharing options...
Lucid_Bot Posted September 9, 2023 Author Share Posted September 9, 2023 21 minutes ago, piranha said: It compares well with Cochlichnus isp. The figured example is from the Devonian Chagrin Shale of Ohio (scale bar = 1 cm). Feldmann, R.M. & Hackathorn, M. (editors) 2005 Fossils of Ohio: Geological Survey Bulletin, 70:1-577 That looks very similar. Is it known what organism makes this? Link to comment Share on other sites More sharing options...
EMP Posted September 10, 2023 Share Posted September 10, 2023 3 hours ago, Lucid_Bot said: That looks very similar. Is it known what organism makes this? An interpretation of the trace fossil Cochlichnus kochi (Ludwig) from the East Pennine Coalfield of Britain | Proceedings of the Yorkshire Geological Society (lyellcollection.org) 1 Link to comment Share on other sites More sharing options...
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