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Showing results for tags 'unclassified'.
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So I was browsing through the Archaeopteryx lithographica records on FossilWorks; and in one of the three records (from Workerszell, Eichstätt), I notice the mention of an 'unclassified' reptile taxon "Rhacehosaurus gracilis". The only further information that was provided was the age range (150.8 to 145.5 Ma) and the geographical distribution. I looked elsewhere online (google scholar, ResearchGate...) for any other mention of the genus "Rhacehosaurus", and nothing else turns up. Do you people know about this enigmatic taxon? Is it some kind of invalid synonym or something? I'd love to know more about this..
So.......I've recently gotten into fossil collecting. It's very addicting, I'll admit. Anyway, I recently bought a neat little Kem Kem tooth that was supposedly listed as a "dromaeosaur" or "raptor" tooth. It wasn't too expensive, and of a decent size and quality, so if by chance it wasn't some sort of raptor tooth, I wasn't going to cry about wasting money. I have no idea why, since ignorance is bliss, but I had a sudden urge to look up identifying raptor teeth and stumbled across this impressive site (thank you for existing!!!!). I am now quite certain that my Kem Kem "dromaeosaur" tooth is most likely from some abelisaurid species, which I'm totally fine with since I was planning on buying one anyway. I'll post pictures of it later, since I already own it and can (hopefully) have it identified to the most likely species at my leisure. However, I stumbled across this tooth on my search for elusive raptor teeth. The seller has surprisingly (and respectably) titled it as an unclassified tooth from the Kem Kem area. To my amateur eyes, it looks like it might possibly belong to a raptor? It is supposedly 0.6 inch long. These are the only pictures the seller has provided so far, hopefully they will work. It looks like the mesial serrations (hopefully I'm using that right! New words, yay!) look like they curve slightly to the lingual surface at the base, at least to me.... I roughly sized up a picture of a ruler with millimeters to the pictures of the tooth. There are roughly 4 serrations per millimeter on the mesial side, and 3 per millimeter on the distal. What do you think? Lingual surface is the first picture, labial is the second.