Sauropod19 Posted May 29 Share Posted May 29 Hi all! I hope you are well! I recently made my annual trip to the Washington, D.C. area, which always includes a trip to the Miocene deposits of the Calvert Cliffs. I think I have a general idea on these IDs but wanted to confirm with others, especially the first two sets of images. I’ve tried to group like fossils as well. Thanks for looking! 1 (ray dermal plate?): 2,3, and 4 (otoliths?): 5, 6, and 7 (with 6 and 7 magnified at the end, respectively; cetacean ribs?): 8 (crab claw?): 9 (ray mouth plate part?): 10 (?): 11 (third image is root zoomed in; cetacean tooth?): Plus, here are a couple of finds that I just wanted to share for fun! Thank you again! 1 Link to comment Share on other sites More sharing options...
automech Posted May 29 Share Posted May 29 Hey there! Glad you had a good trip in my neck of the woods. Here's some answers for you on your finds: 1 is a puffer fish mouth plate. Nice size and condition! 2-4 are teeth from a drum fish 5-7 are bits of bone. Could be cetacean 8 is a yes on crab claw tip 9 not sure. Could be ray plate. Maybe take a picture of the sides? 10 another bone? 11 not enough there for me to guess 1 1 3 Link to comment Share on other sites More sharing options...
Sauropod19 Posted May 29 Author Share Posted May 29 Thank you kindly! I love going to Maryland for fossils; I’m from Indiana and as much as I love the Paleozoic stuff, post-Paleozoic fossils (especially the diversity of vertebrates) are so much more interesting to me. Your reply was immensely helpful ! 1 Link to comment Share on other sites More sharing options...
debivort Posted May 29 Share Posted May 29 agree with the above. I think 9 is a ray plate. 2 Link to comment Share on other sites More sharing options...
debivort Posted May 29 Share Posted May 29 The pharyngeal teeth (2-4) might be wrasse as well, I believe. As far as I understand the source species is hard to ID, if the teeth are round like these. 2 Link to comment Share on other sites More sharing options...
Fin Lover Posted May 29 Share Posted May 29 I think #1 is porcupine fish or burrfish (not puffer). 1 5 Fin Lover Link to comment Share on other sites More sharing options...
automech Posted May 30 Share Posted May 30 @Fin Lover You're right. Thanks for the correction. 1 Link to comment Share on other sites More sharing options...
hemipristis Posted June 1 Share Posted June 1 On 5/30/2024 at 5:27 AM, Sauropod19 said: Hi all! I hope you are well! I recently made my annual trip to the Washington, D.C. area, which always includes a trip to the Miocene deposits of the Calvert Cliffs. I think I have a general idea on these IDs but wanted to confirm with others, especially the first two sets of images. I’ve tried to group like fossils as well. Thanks for looking! 1 (ray dermal plate?): Because this comes up a lot, I thought I'd post a comparison/contrast post: The first is pufferfish, e.g., Spheroides sp.. Note that the upper & lower mouth plates are segmented. 2 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
hemipristis Posted June 1 Share Posted June 1 (edited) And for contrast, here is porcupinefish/burrfish e.g., Diodon sp. In this family of fish, the mouth plates are fused Edited June 1 by hemipristis 4 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
cck Posted June 1 Share Posted June 1 11 looks like a worn fish tilly bone 1 Link to comment Share on other sites More sharing options...
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