Bev Posted August 21, 2014 Share Posted August 21, 2014 I have never seen anything like this or even close. That said most everything about it is a mystery. Had the granddaughter out at a playground in Spring Valley with a lot of pea gravel as a base, and I started finding these bryozoans and this. This city is really cheap, so this pea gravel is local. Pea gravel is not Ordovician, we do have Devonian in the SW corner of Fillmore County and a number of gravel pits. But we also have Cretaceous in the west which also covers Spring Valley. And then there is the possibility of ice age as we have a lot of glacial till. Yes, I know this isn't helping and that is why I'm showing you the bryozoans with this. So a couple of more pics of it: Back side And then there is this one... The pores make me think bryozoan, but... The back And for scale I'll have to go to a reply... The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
Bev Posted August 21, 2014 Author Share Posted August 21, 2014 So if anyone has a clue even on possible age of these fossils I would appreciate it. I've just never seen anything like that first one! Thanks for taking a look! The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
GerryK Posted August 21, 2014 Share Posted August 21, 2014 My first impression is a preserved siphuncle of a nautiloid Link to comment Share on other sites More sharing options...
RCFossils Posted August 21, 2014 Share Posted August 21, 2014 I agree that it appears to be a weathered cephalopod with siphuncle preserved. Link to comment Share on other sites More sharing options...
Bev Posted August 21, 2014 Author Share Posted August 21, 2014 A siphuncle that is curly? I thought they were tube-like. Any thoughts then on the period it may be from? The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
Auspex Posted August 21, 2014 Share Posted August 21, 2014 This one's been rode hard and put away wet. "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...
MikeD Posted August 21, 2014 Share Posted August 21, 2014 Looks like it might be an Archimedes (bryozoan). Link to comment Share on other sites More sharing options...
tmaier Posted August 21, 2014 Share Posted August 21, 2014 I don't think it's Archemedes, because the "screw" looks segmented on this one. Link to comment Share on other sites More sharing options...
TqB Posted August 21, 2014 Share Posted August 21, 2014 Mould of the hollow inside a crinoid stem, with the stem dissolved away? I agree the second looks like a bryozoan. Tarquin Link to comment Share on other sites More sharing options...
Bev Posted August 21, 2014 Author Share Posted August 21, 2014 It sounds like this may end up in the unknowns pile. But it is also sounding like maybe Devonian??? I truly appreciate all of you taking a stab at it! Reminded me of an Archemedes bryozoan too when I first looked at it, but I have only examples that I have purchased as I don't think we have them in the Ordovician. The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
Bev Posted August 21, 2014 Author Share Posted August 21, 2014 For those of you who may be interested in this hunt, there were actually 3 that day I have created a post about it on my blog, however it is grandchild heavy. :-D http://www.bluffcountryfossils.net/blog/andreya-goes-to-quarry-hill-nature-center-much-more/ The more I learn, I realize the less I know. BluffCountryFossils.NET Fossil Adventure Blog Go to my Gallery for images of Fossil Jewelry, Sculpture & Crafts Pinned Posts: Beginner's Guide to Fossil Hunting * Geologic Formation Maps Link to comment Share on other sites More sharing options...
Tethys Posted August 21, 2014 Share Posted August 21, 2014 Another possibility for the first rock is the inner core of a snail shaped like hormotoma, with the cavity revealed where the thin portions of the shells outer whorls dissolved away. I think I see some spiraling grooves imprinted on the inner surface of the cavity. The spiny cone with a mesh top reminds me of chancellorid sponges like pirania, or Allonia, but I think those became extinct in the early Ordovician. Link to comment Share on other sites More sharing options...
howard_l Posted August 22, 2014 Share Posted August 22, 2014 I believe Archemedes bryozoan are restricted to the Caboniferous mostly upper Mississippian. Howard_L http://triloman.wix.com/kentucky-fossils Link to comment Share on other sites More sharing options...
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