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 post Share on other sites
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 Link to post Share on other sites
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 #2: damaged shark tooth or reptilian? Link to post Share on other sites
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 #3: extinct tiger shark tooth or possible extinct goblin shark tooth? Link to post Share on other sites
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 #4: plastron fragment? Link to post Share on other sites
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 #5: ray dental plate fragment or possible plastron fragment? Link to post Share on other sites
Snaggletooth19 Posted January 8, 2021 Author Share Posted January 8, 2021 And #6: Ctretolamna spp.? Link to post Share on other sites
Fossildude19 Posted January 8, 2021 Share Posted January 8, 2021 Ray denticle and possible puffer fish mouth plate for 4 and 5, I think. Link to post Share on other sites
Fossil_finder_ Posted January 8, 2021 Share Posted January 8, 2021 #1 looks like a crocodile scute. Link to post Share on other sites
Praefectus Posted January 8, 2021 Share Posted January 8, 2021 #6 is Cretolamna. Link to post Share on other sites
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