Latest Imageshttps://www.thefossilforum.com/gallery/album/3062-fin-spine-fossils/Latest ImagesenFossilized Tip of a Fin Spinehttps://www.thefossilforum.com/gallery/image/53031-fossilized-tip-of-a-fin-spine/ Currently unidentified, it comes from a rockpile aged to the pennsylvanian with a mixture of winterset and Iola limestone formations strewn throughout

 

I found this away from any matrix and very delicate 

 

my best guess is that this comes from Ctenacanthus any other guesses are welcomed!

 

its size is 11mm

20201107-152054-HDR.jpg

Fossilized Tip of a Fin Spine

]]>53031Fri, 15 Jan 2021 09:09:02 +0000Dorsal Fin Spine Fossilhttps://www.thefossilforum.com/gallery/image/53030-dorsal-fin-spine-fossil/ Even Though it is Poorly preserved it measures just about 12.7cm 

there is not an ID on this one, although I assume it to be from a Hybodus or a large Ctenacanthus since this is found in Pennsylvanian aged rock 

There are Phosphatic nodules present in this limestone chunk suggesting it is from the formation: Muncie Creek shale

Dorsal Fin Spine Fossil

]]>53030Fri, 15 Jan 2021 09:08:38 +0000