Rocks Anne Posted September 17, 2013 Share Posted September 17, 2013 I found this ( and MANY others) next to an oil well near Wewoka, OK, probably in the Wewoka Formation. It may have been blasted out, as there was a whole hillside of loose pieces like this one. I've been told these are all trace fossils made by worms, etc., but I'm not so sure. Any other ideas? Link to comment Share on other sites More sharing options...
Rocks Anne Posted September 17, 2013 Author Share Posted September 17, 2013 More pics of the above Link to comment Share on other sites More sharing options...
Indy Posted September 17, 2013 Share Posted September 17, 2013 Interesting ... Flash from the Past (Show Us Your Fossils)MAPS Fossil Show Link to comment Share on other sites More sharing options...
Auspex Posted September 17, 2013 Share Posted September 17, 2013 That feature got my attention too! There seems to me to be a mix of turbidity flow (angular clasts of non-biologic origin) and bio-turbation (the feature Indy highlighted). Have these been washed/scrubbed clean, or is there still dried mud on them? "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Rocks Anne Posted September 17, 2013 Author Share Posted September 17, 2013 There wasn't much mud on them, as they had been on that pile for who knows how many years, but they were all washed when I brought them home a few years ago. I washed this one again before I took these pictures and scrubbed it lightly with a soft toothbrush. There were also a number of brachs in the same pile in separate pieces. Link to comment Share on other sites More sharing options...
Indy Posted September 17, 2013 Share Posted September 17, 2013 I agree with Auspex ... I don't see anything on this slab which would suggest trace fossils. The highlighted feature does bring possible feeding trace to mind. However, I think it's just a shape suggestive of a feeding trace and not a true trace. Flash from the Past (Show Us Your Fossils)MAPS Fossil Show Link to comment Share on other sites More sharing options...
Rocks Anne Posted September 18, 2013 Author Share Posted September 18, 2013 (edited) I am confused. Regarding the photo I posted, Auspex said, "There seems... to be a mix of turbidity flow and bio-turbation (the feature Indy highlighted)."I looked up bio-turbation and found (on Peripatus Home Page): "Trace fossils, or ichnofossils, are the evidence of bioturbation preserved in sediments, produced in soft sediments and hard substrates as a result of the living activities of organisms. They include surface tracks and trails, subsurface burrows and borings, as well as fecal material and the marks produced by dying animals (Häntzschel 1975)."So if, as Auspex says, the feature Indy highlighted is the evidence of bio-turbation, then it is, by definition, a trace fossil. But Indy says, "I agree with Auspex ... I don't see anything on this slab would suggest trace fossils."Again, I am confused. If not trace fossils, what ARE those formations on that slab? Edited September 18, 2013 by Rocks Anne Link to comment Share on other sites More sharing options...
Auspex Posted September 18, 2013 Share Posted September 18, 2013 I believe the particular feature in question shows too much bilateral symmetry to be anything other than organic in origin. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Plax Posted September 18, 2013 Share Posted September 18, 2013 (edited) aren't those crinoid columnals in the third pic first posting? Not referring to the object Indy accentuated of course.... Edited September 18, 2013 by Plax Link to comment Share on other sites More sharing options...
Rocks Anne Posted September 20, 2013 Author Share Posted September 20, 2013 aren't those crinoid columnals in the third pic first posting? Not referring to the object Indy accentuated of course.... I don't think so, but it's possible. Link to comment Share on other sites More sharing options...
Missourian Posted September 20, 2013 Share Posted September 20, 2013 I'm reminded of this trilobite trace: http://www.thefossilforum.com/index.php?/topic/39934-winner-of-the-july-2013-invertebrate-plant-find-of-the-month/?p=437849 Context is critical. Link to comment Share on other sites More sharing options...
Rocks Anne Posted September 20, 2013 Author Share Posted September 20, 2013 Here are some more from the same pile: Link to comment Share on other sites More sharing options...
Rocks Anne Posted September 20, 2013 Author Share Posted September 20, 2013 Four more: Link to comment Share on other sites More sharing options...
howard_l Posted September 20, 2013 Share Posted September 20, 2013 The last four photos are definitely trace fossils. The ones before that, some look like crinoid hold fasts. The one has brachiopods one looks like a Productid and I see a fragment of a crinoid in there also. Howard_L http://triloman.wix.com/kentucky-fossils Link to comment Share on other sites More sharing options...
PennyT. Posted September 24, 2013 Share Posted September 24, 2013 Bryozoa, too? Link to comment Share on other sites More sharing options...
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