Snaggletooth19 Posted January 8, 2021 Share Posted January 8, 2021 Hi all, I just made my first trip out to Purse State Park/Nanjemoy WMA in Maryland. I found quite a lot of sand tiger teeth, but a couple pieces I could use some help to ID. I’ve got a photo of all of them and some close-ups of each one. #1 is clearly bone, and I suspect reptile, but turtle or crocodile? #2 appears to have some glossy enamel covering on one part but is this a severely damaged shark tooth or something else? #3 had more of a tortuous, twisted crown than any of the sand tigers I found. Could this still be sand tiger or possibly goblin shark? #4 looks like it could be part of a plastron? #5 I at first thought was part of a ray dental plate but could it also be a plastron fragment? #6 I’m fairly sure is Cretolamna spp. but wanted to confirm. Thanks for any help! Link to comment Share on other sites More sharing options...
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 Link to comment Share on other sites More sharing options...
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 #2: damaged shark tooth or reptilian? Link to comment Share on other sites More sharing options...
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 #3: extinct tiger shark tooth or possible extinct goblin shark tooth? Link to comment Share on other sites More sharing options...
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 #4: plastron fragment? Link to comment Share on other sites More sharing options...
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 #5: ray dental plate fragment or possible plastron fragment? Link to comment Share on other sites More sharing options...
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 And #6: Ctretolamna spp.? Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 8, 2021 Share Posted January 8, 2021 Ray denticle and possible puffer fish mouth plate for 4 and 5, I think. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Fossil_finder_ Posted January 8, 2021 Share Posted January 8, 2021 #1 looks like a crocodile scute. Link to comment Share on other sites More sharing options...
Praefectus Posted January 8, 2021 Share Posted January 8, 2021 #6 is Cretolamna. Link to comment Share on other sites More sharing options...
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