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Showing results for tags 'fosiles'.
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Hi, I’ve recently been searching through some sifted gravel from a creek. I’ve been looking for microfossils, which I’ve had plenty of luck finding. All sorts of marine Cretaceous invertebrate micros are abundant in the creek gravel, as well as the occasional micro shark/fish tooth, scale, and bone fragment. I encountered a tooth that stood out from anything I’ve found so far. It has a conical shape, and is recurved. Something about this tooth seems very reptile-like. Almost looks like a tiny version of a crocodile or mosasaur tooth. The tooth measures 1 millimeter in length. I tried searching the internet for something similar, and have been unable to find something like this. The closest thing that I found was teeth from a jaw of a Coniasaurus that was found in North Texas. Here is the tooth that I found. It’s 1 millimeter from base to tip. The creek is located in Central Texas close to Austin, and passes through sediments spanning the whole Cretaceous geological column of Texas. From the Glen Rose Limestone to the Navarro Group. (~110-66 myrs). What do y’all think of this little tooth. Could it be from a small reptile like Coniasaurus and other dolichosaurs?