fossilsonwheels Posted March 27, 2020 Share Posted March 27, 2020 As I’ve gone through the donation of STH material we received, I have found a couple of shark teeth that I can not ID. My picture capability is limited to my phone so I apologize for picture quality. I thought the first tooth looks something like a Hemipristis symphyseal tooth but I could be off base. It appears to be a complete tooth as I see no evidence of the root being broken. 1 Link to comment Share on other sites More sharing options...
Al Dente Posted March 27, 2020 Share Posted March 27, 2020 6 minutes ago, fossilsonwheels said: I thought the first tooth looks something like a Hemipristis symphyseal tooth You are correct. 3 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted March 27, 2020 Author Share Posted March 27, 2020 I found two teeth that fit the morphology of this tooth, the second is quite a bit smaller than this one. I at first thought Hexanchus upper but I have backed off of that ID. Whatever it is, they are interesting teeth. 1 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted March 27, 2020 Author Share Posted March 27, 2020 Just now, Al Dente said: You are correct. Sweet !!! It’s a nice little tooth Link to comment Share on other sites More sharing options...
Al Dente Posted March 27, 2020 Share Posted March 27, 2020 2 hours ago, fossilsonwheels said: I found two teeth that fit the morphology of this tooth, the second is quite a bit smaller than this one. I at first thought Hexanchus upper but I have backed off of that ID. Whatever it is, they are interesting teeth. This one looks like Physogaleus contortus. 2 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted March 27, 2020 Author Share Posted March 27, 2020 I have no clue on this one. Looks somewhat similar to the Hemipristis above but I don’t know if that is correct. Link to comment Share on other sites More sharing options...
fossilsonwheels Posted March 27, 2020 Author Share Posted March 27, 2020 13 minutes ago, Al Dente said: This one looks like Physogaleus contortus. Thank you very much Link to comment Share on other sites More sharing options...
Al Dente Posted March 27, 2020 Share Posted March 27, 2020 1 hour ago, fossilsonwheels said: Looks somewhat similar to the Hemipristis above but I don’t know if that is correct. It looks like another Hemipristis anterior tooth. 1 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 2, 2020 Author Share Posted April 2, 2020 Here is one that needs ID help. From the micro matrix. Just about .25” . No serrations Looks nothing like the smaller ground shark teeth I found. Doesn’t look like any of the other small teeth I found. Link to comment Share on other sites More sharing options...
Al Dente Posted April 2, 2020 Share Posted April 2, 2020 3 hours ago, fossilsonwheels said: Here is one that needs ID help. From the micro matrix. Just about .25” . No serrations Looks nothing like the smaller ground shark teeth I found. Doesn’t look like any of the other small teeth I found. It looks like Alopias. Unusual for that locality. 3 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 2, 2020 Author Share Posted April 2, 2020 9 hours ago, Al Dente said: It looks like Alopias. Unusual for that locality. Awesome. Thank you. This was the one tooth I found that I thought might be Alopias. Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 5, 2020 Author Share Posted April 5, 2020 A few micro teeth that I can use some help with. These are the three that are just different enough from the rest to require some help. First up. 2mm or possibly a touch smaller. The root looks quite a bit different than the Triakis teeth I found. That is what is throwing me. I have compared it all the other Triakis and Galeorhinus I found and this one stood out. Best pictures I can get for now. Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 5, 2020 Author Share Posted April 5, 2020 Two other tiny teeth I need some help with. Both are 2-3mm. The orange-ish tooth on the right has very different roots than any other tooth I found. Not sure what the proper term is but it has projections on the roots, visible in the pic. They look like little feet lol The gray tooth on the left also looked different enough from the Triakis teeth for me to seek some help. The cusps just look a little different and so does what you can see of the root. It has some matrix stuck on it. Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 5, 2020 Author Share Posted April 5, 2020 Link to comment Share on other sites More sharing options...
siteseer Posted April 5, 2020 Share Posted April 5, 2020 4 hours ago, fossilsonwheels said: A few micro teeth that I can use some help with. These are the three that are just different enough from the rest to require some help. First up. 2mm or possibly a touch smaller. The root looks quite a bit different than the Triakis teeth I found. That is what is throwing me. I have compared it all the other Triakis and Galeorhinus I found and this one stood out. Best pictures I can get for now. That looks like a Triakis anterior or perhaps parasymphsyeal tooth. 1 Link to comment Share on other sites More sharing options...
siteseer Posted April 5, 2020 Share Posted April 5, 2020 4 hours ago, fossilsonwheels said: Those look like two Galeorhinus parasymphyseal teeth. Jess 1 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 5, 2020 Author Share Posted April 5, 2020 6 hours ago, siteseer said: Those look like two Galeorhinus parasymphyseal teeth. Jess Awesome. Thank you Jess. I ended up finding some cool positional teeth among the micros. I noticed a few variations to the Galeorhinus teeth. Link to comment Share on other sites More sharing options...
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