DatFossilBoy Posted January 13, 2019 Share Posted January 13, 2019 Hey guys! I acquired 7 teeth from Russia as plesiosaur teeth. But now I am seeing more pliosaur than plesiosaur in some. A clear ID on the teeth when possible would be really appreciated. You can use the ordre I posted the pics and associate them as numbers . They are all more or less 1cm. Thanks a lot! Link to comment Share on other sites More sharing options...
gigantoraptor Posted January 13, 2019 Share Posted January 13, 2019 Russia is an extremely big country with a lot of different formations representing many ages. Do you have any more information on the exact location and age? @Anomotodonknows a lot about this kind of fossils. Link to comment Share on other sites More sharing options...
DatFossilBoy Posted January 13, 2019 Author Share Posted January 13, 2019 31 minutes ago, gigantoraptor said: Russia is an extremely big country with a lot of different formations representing many ages. Do you have any more information on the exact location and age? @Anomotodonknows a lot about this kind of fossils. They were found in Ryazan, Russia. Link to comment Share on other sites More sharing options...
Anomotodon Posted January 13, 2019 Share Posted January 13, 2019 Major reptile-producing region in Ryazan region is Shazk quarry, preservation looks quite similar. Hence they are all Cenomanian in age. Don’t see any pliosaurs in here. 1, 2, 4, 6 are plesiosaurs - likely Leptocleidia but some also could be broken elasmosaurs. 5 is an ichthyosaur, cf. Platypterygius while for 3 I am not sure if it is ichthyosaur or plesiosaur - likely latter one but more pictures will help. 5 The Tooth Fairy Link to comment Share on other sites More sharing options...
DatFossilBoy Posted January 13, 2019 Author Share Posted January 13, 2019 30 minutes ago, Anomotodon said: Major reptile-producing region in Ryazan region is Shazk quarry, preservation looks quite similar. Hence they are all Cenomanian in age. Don’t see any pliosaurs in here. 1, 2, 4, 6 are plesiosaurs - likely Polycotylids but some also could be broken elasmosaurs. 5 is an ichthyosaur, cf. Platypterygius while for 3 I am not sure if it is ichthyosaur or plesiosaur - likely latter one but more pictures will help. That’s awesome! Thanks so much Here is some extra pics of number 3. Thank you so much! Link to comment Share on other sites More sharing options...
Anomotodon Posted January 13, 2019 Share Posted January 13, 2019 I'd guess a Leptocleidia indet. for this one due to asymetrical striations and curvature 2 The Tooth Fairy Link to comment Share on other sites More sharing options...
DatFossilBoy Posted January 13, 2019 Author Share Posted January 13, 2019 9 minutes ago, Anomotodon said: I'd guess a Polycotylid for this one due to asymetrical striations and curvature That’s awesome. Thank you for your help! Are they rare? Link to comment Share on other sites More sharing options...
Anomotodon Posted January 13, 2019 Share Posted January 13, 2019 22 minutes ago, DatFossilBoy said: That’s awesome. Thank you for your help! Are they rare? Marine reptile teeth are quite uncommon in these deposits, much rarer than most shark species. P.S. a more accurate ID would be Leptocleidia indet. rather than Polycotylidae indet. 1 The Tooth Fairy Link to comment Share on other sites More sharing options...
DatFossilBoy Posted January 13, 2019 Author Share Posted January 13, 2019 2 hours ago, Anomotodon said: Marine reptile teeth are quite uncommon in these deposits, much rarer than most shark species. P.S. a more accurate ID would be Leptocleidia indet. rather than Polycotylidae indet. Oh ok. Thank you for that. Is a determined specie inmpossible one the best examples like number 3 and 6 ?Or can it only be Leptocleidia indet.? Thanks again. Link to comment Share on other sites More sharing options...
Anomotodon Posted January 14, 2019 Share Posted January 14, 2019 6 hours ago, DatFossilBoy said: Oh ok. Thank you for that. Is a determined specie inmpossible one the best examples like number 3 and 6 ?Or can it only be Leptocleidia indet.? Thanks again. Unfortunately plesiosaur teeth are practically impossible to ID to the species level, in addition, no taxa were described from that area 1 The Tooth Fairy Link to comment Share on other sites More sharing options...
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