rwise Posted January 22, 2015 Posted January 22, 2015 Found this last weekend in Jacksboro, TX. Pennsylvanian, Finis shale, Graham Formation. Is this a brachiopod? or something else....one inch deep, two inches wide, found with other brachs, crinoids, and other marine material, Thanks in advance for your help. Thanks for your help in advance.
Dave in Alaska Posted January 22, 2015 Posted January 22, 2015 I am no expert, but it kind of looks like there was a spiral to it. could it be part of a gastropod shell?
fossilized6s Posted January 22, 2015 Posted January 22, 2015 It looks like a piece of shell from a gastropod. ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG
rwise Posted January 22, 2015 Author Posted January 22, 2015 Could be, but the third picture above shows the side view, and the opposite side view is almost identical. The bottom is flat like the bottom part of a brach. On the bottom view you can see the "beak" coming through. Thanks for your help in advance.
Scott S. Posted January 22, 2015 Posted January 22, 2015 It is a bellerophontid gastropod. This group coiled in on it's previous whorl making it look rather like a chubby ammonoid. Possibly a weathered Euphemites specimen.
Dave in Alaska Posted January 22, 2015 Posted January 22, 2015 (edited) Which view are you calling the bottom? What I was interpreting as a spiral comes from the 3rd and 4th pictures. On the third picture it looks like you can see 2 pieces of the inner coil getting smaller as it steps to the right of the photo. Then on the fourth photo, I think it is looking down from what is the right hand side of photo 3, it looks like there is a bit of broken shell from the next smaller coil. Does that make sense? Edited January 22, 2015 by Dave in Alaska
rwise Posted January 22, 2015 Author Posted January 22, 2015 Thanks Scott...I think you nailed it..... Thanks for your help in advance.
BobWill Posted January 26, 2015 Posted January 26, 2015 I agree with Scott. Probably an internal mold so a better ID may be hard. There's at least 3 genera at Jacksboro.
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