hokietech96 Posted January 17, 2020 Posted January 17, 2020 Went to Brownies for the first time Wednesday. Met up with @searcher78 and had a good time looking stuff. It is completely different then what we have in Jersey. The cliffs are really amazing. Enjoy the pics. Appreciate any feedback on the pics. Thanks as always. what could have been a nice Mako my first hemis ever! front and back of what I think is a piece of cow shark? 4
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 top 2 sand tiger - bottom 2 tiger shark? two on left makos? other 3 are dusky/bull mix of lemons, sand tiger, bulls, dusky. If anything different stands out please let me know. Great appreciate any help vert, most likely modern i think fish bone? This is front and back of fish jaw? It’s 1/2 inch 2
Fossildude19 Posted January 17, 2020 Posted January 17, 2020 The fish bones are an operculum and a rib, obviously modern. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 54 minutes ago, Fossildude19 said: The fish bones are an operculum and a rib, obviously modern. Thanks for the feedback
Searcher78 Posted January 17, 2020 Posted January 17, 2020 Nice finds. After separating my lemons from my carcharhinus, I noticed I found my first Rhizoprionodon fischeuri / Sharpnose Shark. 3
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 1 hour ago, Searcher78 said: Nice finds. After separating my lemons from my carcharhinus, I noticed I found my first Rhizoprionodon fischeuri / Sharpnose Shark. Very nice
Al Dente Posted January 17, 2020 Posted January 17, 2020 6 hours ago, hokietech96 said: This is front and back of fish jaw? It’s 1/2 inch This is the hinge area of some type of bivalve. 2
FossilsAnonymous Posted January 17, 2020 Posted January 17, 2020 2 hours ago, Al Dente said: This is the hinge area of some type of bivalve. I agree... I can believe how many times those have tricked me! 1 On The Hunt For The Trophy Otodus!
fossilnut Posted January 17, 2020 Posted January 17, 2020 Is the mako blade in your first picture just a shell of enamel (hollow)? If so it is a forming tooth. The enamel is the first part of the tooth to form; then the dentine interior and finally the root forms. If so it is fairly rare to find. Looks like you had a great day. The fish operculum (modern) is a neat find. 1
sharkdoctor Posted January 17, 2020 Posted January 17, 2020 The piece cited correctly as operculum is one of the pieces that makes up the operculum. I think it is the pre-opercular. See reference photo below: http://palaeos.com/vertebrates/bones/dermal/opercular.html 5
sharkdoctor Posted January 17, 2020 Posted January 17, 2020 Great finds! Looks like you had a fun day on the water. A few comments: 1. The bottom left snaggletooth looks to have a bite mark on its lingual face. 2. In the lemon group, the third tooth down on the left looks to be a hammerhead. 3. A free comprehensive ID guide for teeth from the Calvert Formation can be found in the shark chapter of: https://smithsonian.figshare.com/articles/The_Geology_and_Vertebrate_Paleontology_of_Calvert_Cliffs_Maryland_USA/9761762 3
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 17 minutes ago, fossilnut said: Is the mako blade in your first picture just a shell of enamel (hollow)? If so it is a forming tooth. The enamel is the first part of the tooth to form; then the dentine interior and finally the root forms. If so it is fairly rare to find. Looks like you had a great day. The fish operculum (modern) is a neat find. it is hollow out. Wow. Very exciting. Thanks for the feedback!
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 11 minutes ago, sharkdoctor said: Great finds! Looks like you had a fun day on the water. A few comments: 1. The bottom left snaggletooth looks to have a bite mark on its lingual face. 2. In the lemon group, the third tooth down on the left looks to be a hammerhead. 3. A free comprehensive ID guide for teeth from the Calvert Formation can be found in the shark chapter of: https://smithsonian.figshare.com/articles/The_Geology_and_Vertebrate_Paleontology_of_Calvert_Cliffs_Maryland_USA/9761762 close up of that hammerhead? thanks for that link. I’m going to go on it now. Thanks so much for all your input on Brownies!
Searcher78 Posted January 17, 2020 Posted January 17, 2020 I believe a Hammerhead would have no serrations on the blade. A Tiger would have serrations.
sharkdoctor Posted January 17, 2020 Posted January 17, 2020 8 minutes ago, Searcher78 said: I believe a Hammerhead would have no serrations on the blade. A Tiger would have serrations. Agreed. In close-up its easier to see that the serrations are there, rather than surf damage.
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 15 minutes ago, Searcher78 said: I believe a Hammerhead would have no serrations on the blade. A Tiger would have serrations. 5 minutes ago, sharkdoctor said: Agreed. In close-up its easier to see that the serrations are there, rather than surf damage. It’s ironic hammerhead came up because this morning I was looking through the teeth and I really thought I had a hammerhead but I thought it was this one
Searcher78 Posted January 17, 2020 Posted January 17, 2020 That one doesn’t look like hammerhead to me. Looks more like Carcharhinus to me.
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 yeah I agree with you. I stink at IDing. Was just looking at different websites and it's not. I thought it was because of the big notch and i do not see any serrations. I will get there on the IDing...eventually haha.
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 3 hours ago, sharkdoctor said: Great finds! Looks like you had a fun day on the water. A few comments: 1. The bottom left snaggletooth looks to have a bite mark on its lingual face. 2. In the lemon group, the third tooth down on the left looks to be a hammerhead. 3. A free comprehensive ID guide for teeth from the Calvert Formation can be found in the shark chapter of: https://smithsonian.figshare.com/articles/The_Geology_and_Vertebrate_Paleontology_of_Calvert_Cliffs_Maryland_USA/9761762 This link is awesome and hopefully help me. 1
The Jersey Devil Posted January 17, 2020 Posted January 17, 2020 5 hours ago, fossilnut said: Is the mako blade in your first picture just a shell of enamel (hollow)? If so it is a forming tooth. The enamel is the first part of the tooth to form; then the dentine interior and finally the root forms. If so it is fairly rare to find. Looks like you had a great day. The fish operculum (modern) is a neat find. It is more likely to be leached if hollow “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal
The Jersey Devil Posted January 17, 2020 Posted January 17, 2020 Nice stuff. The cow shark is a partial sand tiger. 1 “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal
hokietech96 Posted January 17, 2020 Author Posted January 17, 2020 1 hour ago, The Jersey Devil said: It is more likely to be leached if hollow So not as rare? Still super excited about!
paxhunter Posted January 17, 2020 Posted January 17, 2020 Your first tooth the hastalis looks like a file tooth to me 2
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