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Showing results for tags 'lower taylor marl'.
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Hi all, before I post today's trip in fossil hunting trips, I'd like to know a little better about the ID's. This is a ll from a creek in Austin (central texas) that exposes the Ozan formation (aka the lower taylor marl here) Specimen 1) I'm fairly sure it's a mosasaur tooth, but It's oddly stout. It seems to have two cutting edges, but I'm still just not quite sure how to differentiate Mosasaur teeth from Pachyrhizodus teeth. Which one is it, and why? Specimen 2.) This jaw is likely very modern - i'm thinking Racoon, the only reason it made me curious is the sheer amount of holes in it for teeth. Confirm or deny? Specimen 3.) I think this may be a fish tooth in a piece of jaw, but there's just not a clear point where the tooth starts and the jaw ends. Any ideas? Specimen 4.) This was from a slightly earlier hunt, but I'm still curious. I'm thinking Xiphactinus tooth, but the groove down the side seems to be an important feature, and I didn't spot that in pictures of any cretaceous fish teeth. Specimen 5.) This is a preserved rib - I recognize that ID will be difficult, but since it's old enough to be well on the way to fossilizing I'm still interested in trying Specimen 6.) A very large bone found sticking halfway out the gravel. Seeming we found several bison teeth in this area, I'm crossing my fingers for bison
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