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South Sulphur River - Neylandville, TX Geology


GeschWhat

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I picked up this little spiral coprolite at the Tucson Gem Show a couple of weeks ago. It was collected by John Schultz in 2005 at the "old bridge site" on the South Sulphur River near Neylandville, Texas. I am trying to figure out the geology of the area, and I am coming up with Holocene Alluvium. Is anyone here familiar with the area? If so, is this correct? The reason I ask is that I have another spiral coprolite in my collection found along the same river in Hunt County, from the same gentleman's collection, that was labeled from the Taylor Marl - Cretaceous. Thanks for your help!

 

Spiral-Coprolite-South-Sulphur-River-Pinched-All-Small.jpg

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It is probably from Cretaceous Navarro Group 72-65 mya which is similar to rocks found at the North Sulphur River.

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I'm not sure on the formation since I forgot to check it out with my app while hunting. I think it's different from the North Sulphur River. I've seen fossils from the South Sulphur that the North Sulphur doesn't have. 

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I have a 50 lb bucket of matrix to sort through when I get home from offfshore from there. :)

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