Kolya Posted September 25, 2021 Share Posted September 25, 2021 Hello! I found tooth of male Dasyatis with some "bulging" on the lover parts of cusp (in lingual part of tooth). I didnt found before teeth of this genus with such "bulging" - is it some species feature or just some phatology? As far as I know from the research territory are known few species of Dasyatis: delfortriei, probsti, rugosa and strangulata... Middle Miocene. Western Ukraine. Thanks in advance! Link to comment Share on other sites More sharing options...
siteseer Posted September 25, 2021 Share Posted September 25, 2021 Hi Kolya, I think it's just a minor variation - outgrowths of enameloid. I have found hundreds of Dasyatis teeth in the Sharktooth Hill Bonebed in Bakersfield, California. I find teeth that are a little larger and teeth that are a little smaller than average among the male and female teeth. Some seem to belong to different species but I read an article (Feibel, 1993) that said there is a lot of variation just within the jaws of a single individual of a modern stingray. Jess Feibel, C.S. 1993. Freshwater stingrays from the Plio-Pleistocene of the Turkana Basin, Kenya and Ethiopia. Lethaia. Vol. 26. pp. 359-366. 1 Link to comment Share on other sites More sharing options...
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