KCMOfossil Posted December 29, 2017 Share Posted December 29, 2017 I found this item in shale from the Stark Shale Member, Kansas City Group of the Pennsylvanian. Photos are of either of the halves of the specimen. The specimen is about 2 cm long. I would appreciate ID help. The only thought I had was that it seems to be flora and that the "stem" looks similar in appearance to Cordaites. Thanks, Russ Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 29, 2017 Share Posted December 29, 2017 Looks like a fish spine, to me. Perhaps something similar to Ctenacanthus or Xenacanthus ? 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...
RCFossils Posted December 29, 2017 Share Posted December 29, 2017 Listracanthus spine Link to comment Share on other sites More sharing options...
KCMOfossil Posted December 30, 2017 Author Share Posted December 30, 2017 1 hour ago, RCFossils said: Listracanthus spine Thanks for the ID. That looks just like it. I've found three other spines in this same small bucket of shale. These are the first I've encountered. Russ Link to comment Share on other sites More sharing options...
Archie Posted December 30, 2017 Share Posted December 30, 2017 That's gorgeous, definitely Listracanthus always wanted to find one of these! Link to comment Share on other sites More sharing options...
Miocene_Mason Posted December 30, 2017 Share Posted December 30, 2017 Nice! “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Missourian Posted December 30, 2017 Share Posted December 30, 2017 7 hours ago, KCMOfossil said: These are the first I've encountered. You'll find many more. At least for me, they seem to be the most common vertebrate in the Stark. Context is critical. Link to comment Share on other sites More sharing options...
jdp Posted December 30, 2017 Share Posted December 30, 2017 Technically a scale, and not a spine. A single Listracanthus would be covered in hundreds to thousands of these, which is why these scales are so common. Always satisfying to find one, though. There's not much like them. Link to comment Share on other sites More sharing options...
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