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Showing results for tags 'jasper creek fm'.
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I'm screening some micros from the Jasper Creek formation (I think) of Wise County Texas, near Lake Bridgeport. This has some texture in the close-up image that looks a little like stereom so I thought maybe echinoid rotula but I've only seen one other and it's pretty different. I'll include a picture of it last. Scale is millimeters.
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I found this in Texas, near Lake Bridgeport, in the Jasper Creek Formation, Canyon Group, Missouri Series, Pennsylvanian Sub-period. The flared lip, think shell and absence of obvious sutures or septa tell me it is more likely to be a Bellerophontid gastropod than a cephalopod. The open umbilicus and the large size is making a firm ID difficult. Any ideas?
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I think I found myself a partial crinoid calyx in some micro matrix. Pennsylvanian period, Jasper Creek fm, Bridgeport, Texas. Measuring just 1.5 cm in length plus another tiny cluster that may be part of another. So I'm posting both on here for more learned opinions. The 2nd one is a bit smaller, measuring only .5 cm in length. I'd like to find an entire calyx (or an entire critter). I seem to have become partial to crinoids for some reason.
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I don't know whether to laugh or cry on this one. Found an enrolled Trilobite in my micro matrix. Gave it a nice spa treatment of hydrogen peroxide & got most of the matrix off. And then took a look at it with my dino lite & found that it has almost no head. Thing is maybe 3.5 mm across and the one thing I didn't actually expect to find. No idea if it can even be identified now, but here's the pics anyway. Pics are 45 x magnification. Jasper Creek Formation. Late Pennsylvanian.
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- jasper creek fm
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I recently bought some microfossil matrix from the Jasper Creek formation in Bridgeport Texas. Found lots of crinoid stem pieces, some about as big around as the lead from a mechanical pencil, lots of sponge pieces & quite a few Girtyocoelia Sponge ball and chain sponges. I also found what I think is a complete shell, but I'm not sure. Everything else is a tan color, but this is more of a brown & black. When putting it in hydrogen peroxide to try to clean some of the left over matrix of, it floated. So I looked at it with my DinoLite & took some pics of it. Both sides have 2 shots showing different levels & the "hinge" area. It's .5 cm at the widest. 50x magnification.
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