ThePhysicist Posted August 12, 2019 Share Posted August 12, 2019 Hey y'all, got back from a trip to Galveston yesterday. I found a few neat things that I'll post in a new album later. I'm not sure about this shark tooth, though. My initial thought was dusky or some carcharhinus. However the nutrient groove reminds me of sphyrna. The tooth in question is the larger brown tooth in the pictures. It has fine, even serrations, and a deep nutrient groove. The last three pictures include a sphyrna tooth for comparison. Thank you! "Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan "I was born not knowing and have had only a little time to change that here and there." - Richard Feynman Collections: Hell Creek Microsite | Hell Creek/Lance | Dinosaurs | Sharks | Squamates | Post Oak Creek | North Sulphur River | Lee Creek | Aguja | Permian | Devonian | Triassic | Harding Sandstone Instagram: @thephysicist_tff Link to comment Share on other sites More sharing options...
Fossildude19 Posted August 12, 2019 Share Posted August 12, 2019 @MarcoSr @siteseer @fossilselachian 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...
Praefectus Posted August 12, 2019 Share Posted August 12, 2019 I agree with hammerhead tooth (Sphyra sp.) Link to comment Share on other sites More sharing options...
Rustdee Posted August 12, 2019 Share Posted August 12, 2019 Looks like Sphyra to me! Nice find! Link to comment Share on other sites More sharing options...
Ramo Posted August 13, 2019 Share Posted August 13, 2019 I dont know what shark that is from, but those are some fantastic photos! Do you mind telling what you took them with and how? For one species to mourn the death of another is a new thing under the sun. -Aldo Leopold Link to comment Share on other sites More sharing options...
hemipristis Posted August 13, 2019 Share Posted August 13, 2019 Sphyrna sp. for sure, probably S. zygaena 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
ThePhysicist Posted August 13, 2019 Author Share Posted August 13, 2019 Thank you everyone for the input! @Ramo, I took the photos with my 10.5" 2017 iPad Pro. (It has a better camera than my iPhone SE.) The camera does most of the work for you, I just tap where I want to focus, and I can change lighting and exposure afterwards for better visibility. I really shouldn't take much credit for it, but I appreciate the compliment! @hemipristis, I would probably agree with you on that. I think S. mokarran has larger serrations. "Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan "I was born not knowing and have had only a little time to change that here and there." - Richard Feynman Collections: Hell Creek Microsite | Hell Creek/Lance | Dinosaurs | Sharks | Squamates | Post Oak Creek | North Sulphur River | Lee Creek | Aguja | Permian | Devonian | Triassic | Harding Sandstone Instagram: @thephysicist_tff Link to comment Share on other sites More sharing options...
siteseer Posted August 13, 2019 Share Posted August 13, 2019 4 hours ago, ThePhysicist said: Thank you everyone for the input! @Ramo, I took the photos with my 10.5" 2017 iPad Pro. (It has a better camera than my iPhone SE.) The camera does most of the work for you, I just tap where I want to focus, and I can change lighting and exposure afterwards for better visibility. I really shouldn't take much credit for it, but I appreciate the compliment! @hemipristis, I would probably agree with you on that. I think S. mokarran has larger serrations. Yeah, hammerhead but it's tough to nail a tooth like that to species due to even minor water wear. S. zygaena teeth tend to be a little broader mid-crown but not always. I think it has a shot at being S. mokarran but I would lean toward zygaena too. Link to comment Share on other sites More sharing options...
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