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Showing results for tags 'exogyra?'.
Found 4 results
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Found several years ago in an area of Cibolo Creek that cuts through the Pecan Gap Chalk near San Antonio. After some brief research and comparison with other fossils, my best guess of what this fossil could be is a possible species of Exogyra. All other similar looking fossils in my small collection do not have any color like this specimen and I haven’t seen any other fossils this well preserved (if that is the original color of the shell). I don’t know too much about the evolution of bivalves but another guess is it a “newer” species from a time period other than Cretaceous and is younger or not as weathered. I am open to any other suggestions, questions and especially confirmation of what the little critter was!
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My mom and dad gave me a box of shells they found years ago in a central Texas creek. I believe it was around Williamson County, but not sure. This is the largest specimen. Measurements are in inches. Shells are an area I'm not very familiar with, but this one appears similar to examples of exogyra I found online. I'm hoping someone else can tell me more.
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I found hundreds of these in San Antonio and would like to have a few interesting facts for my 5 year old students. My best guess from pictures online was they are exogyra? And they are from the Cretaceous period? I also do not want to give them the wrong information. Can anyone help? The pictures I am sending are all of just one fossil.
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Hello all Here is a companion query for help. This item is flat, tapered to the top and slightly concave from the underside. The two pictures are a top view and a bottom view. It is about 2” thick. The scaliness, if there is such a word, looks like Exogyra, but does not have the curved narrow end described for Exogyra. I assumed this was a flat mollusk shell when I picked it up (E of Capital Reef, south of Rt 24, about 4 miles outside the park) but can’t find a match with the limited references I have. Help appreciated. Thanks. Tom
