grg1109 Posted February 14, 2021 Share Posted February 14, 2021 Upper Middle Devonian, Central NY, Tully Limestone. This is a piece I only recently discovered that I've had. I'm not quite sure what to make of the figures in the rock. Rock is approx. 2" X 1 1/8", figures range from approx. 1/8" to 1/4" Help appreciated Thanks Greg Link to comment Share on other sites More sharing options...
Rockwood Posted February 14, 2021 Share Posted February 14, 2021 Can you give us a closer look ? Link to comment Share on other sites More sharing options...
grg1109 Posted February 14, 2021 Author Share Posted February 14, 2021 These are the closest I can get Thanks Greg Link to comment Share on other sites More sharing options...
Kane Posted February 14, 2021 Share Posted February 14, 2021 Tempted to guess crinoid stem cross sections. 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Rockwood Posted February 14, 2021 Share Posted February 14, 2021 It's a tricky study in sectioning, but that would seem to be it. Link to comment Share on other sites More sharing options...
Kane Posted February 14, 2021 Share Posted February 14, 2021 17 minutes ago, Rockwood said: It's a tricky study in sectioning, but that would seem to be it. It is a bit tricky, as there are some convincing contenders for it to be something else! The elliptical shape can throw us off, but I know a lot of the Devonian limestone over here that is cut and used for some landscaping and building do have these "ellipses" kind of like these: The specimen in the upper left of the last photo that is white does show the sections very clearly (assuming it belongs to the other, darker specimens on that rock). 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
grg1109 Posted February 14, 2021 Author Share Posted February 14, 2021 15 minutes ago, Kane said: The specimen in the upper left of the last photo that is white does show the sections very clearly Yes, I can see resemblance...along with the Crinoid stem(horizontal section) in the 2nd close up photo...very convincing. Thanks Greg Link to comment Share on other sites More sharing options...
val horn Posted February 14, 2021 Share Posted February 14, 2021 What is the size ? What about foramina? Link to comment Share on other sites More sharing options...
Kane Posted February 14, 2021 Share Posted February 14, 2021 10 minutes ago, val horn said: What is the size ? What about foramina? Dimensions were provided in the first post as 1/8" to 1/4". The morphology and size doesn't seem quite right for foraminifera. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
pinkus Posted February 14, 2021 Share Posted February 14, 2021 My first thought was Fusulinid. Link to comment Share on other sites More sharing options...
abyssunder Posted February 14, 2021 Share Posted February 14, 2021 Maybe they are eroded Tentaculitids? " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
grg1109 Posted February 14, 2021 Author Share Posted February 14, 2021 I've cleaned it a bit and got as close to them as the microscope will allow...maybe helpful...maybe not. Link to comment Share on other sites More sharing options...
Kane Posted February 14, 2021 Share Posted February 14, 2021 Hmm... The closeups add a lot more interesting detail. Perhaps these might be bryozoans? So, I would say the elliptical specimens with striations are crinoid, and these other specimens with what appear to be zooecia are bryozoans. Hopefully you didn't miss the much larger ridged line specimen, which is a cross section of a brachiopod. 2 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
IsaacTheFossilMan Posted February 14, 2021 Share Posted February 14, 2021 Interesting. I too assumed columnals, but the irregular shapes to them seem more squishy (palaeontological terminology, obviously). My first thoughts were some form of isopod, but that's definitely a shot in the dark. @Kane, I'm not seeing bryozoa, could you please tell me where you're coming from? I'm not trying to be accusatory, just a genuine question, as I am not too well versed in bryozoans! ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
Kane Posted February 14, 2021 Share Posted February 14, 2021 48 minutes ago, IsaacTheFossilMan said: Interesting. I too assumed columnals, but the irregular shapes to them seem more squishy (palaeontological terminology, obviously). My first thoughts were some form of isopod, but that's definitely a shot in the dark. @Kane, I'm not seeing bryozoa, could you please tell me where you're coming from? I'm not trying to be accusatory, just a genuine question, as I am not too well versed in bryozoans! The apparent presence of zooecia. Also, no Isopoda in the Devonian. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Rockwood Posted February 14, 2021 Share Posted February 14, 2021 Here ? 1 Link to comment Share on other sites More sharing options...
grg1109 Posted February 14, 2021 Author Share Posted February 14, 2021 Ok, I think I understand(perhaps). Thanks so much for everyone's help! Greg Link to comment Share on other sites More sharing options...
IsaacTheFossilMan Posted February 15, 2021 Share Posted February 15, 2021 11 hours ago, Kane said: The apparent presence of zooecia. Also, no Isopoda in the Devonian. I see, thanks. For some reason I didn't register the age of these... ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
grg1109 Posted February 15, 2021 Author Share Posted February 15, 2021 I do have it now...I'm a bit slow on the uptake. Thanks Again Greg Link to comment Share on other sites More sharing options...
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