Vaughn O Posted May 21, 2022 Share Posted May 21, 2022 These are some odd stream finds (fossils? / weird concretions?) from a spring 2022 trip the Ramanessin Brook in Holmdel, NJ. They were all recovered from the Cretaceous stream bed sediment. This is my first time uploading for ID help, so I apologize for any issues with photo quality or lack of scale (I still need to invest in a ruler). Thank you so much for any and all help! 1. (Angle 1) 1. (Angle 2) 2. (Angle 1) 2. (Angle 2) 2. (Angle 3) 3. (Angle 1) 3. (Angle 2) 4. (Hollow on the inside) 5. Sorry for the large photo size. I did not realize how they would turn out until they were on my computer. 1 Link to comment Share on other sites More sharing options...
val horn Posted May 21, 2022 Share Posted May 21, 2022 4 looks like a shark tooth fragmentsomething a kin to tiger shark. The others look like iron stone concretion or shrimp burrows Link to comment Share on other sites More sharing options...
Meganeura Posted May 21, 2022 Share Posted May 21, 2022 1 minute ago, val horn said: 4 looks like a shark tooth fragmentsomething a kin to tiger shark. The others look like iron stone concretion or shrimp burrows Sand tiger that is - tigers are very different. But agreed that 4 looks like a sand tiger tooth fragment! Though the patterning on it is quite strange. Fossils? I dig it. Link to comment Share on other sites More sharing options...
Top Trilo Posted May 21, 2022 Share Posted May 21, 2022 4 looks like a crab claw to me. 2 “If fossils are not "boggling" your mind then you are simply not doing it right” -Ken (digit) "No fossil is garbage, it´s just not completely preserved” -Franz (FranzBernhard) "With hammer in hand, the open horizon of time, and dear friends by my side, what can we not accomplish together?" -Kane (Kane) "We are in a way conquering time, reuniting members of a long lost family" -Quincy (Opabinia Blues) "I loved reading the trip reports, I loved the sharing, I loved the educational aspect, I loved the humor. It felt like home. It still does" -Mike (Pagurus) “The best deal I ever got was getting accepted as a member on The Fossil Forum. Not only got an invaluable pool of knowledge, but gained a loving family as well.” -Doren (caldigger) "it really is nice, to visit the oasis that is TFF" -Tim (fossildude19) "Life's Good! -Adam (Tidgy's Dad) Link to comment Share on other sites More sharing options...
Al Dente Posted May 21, 2022 Share Posted May 21, 2022 #2 looks like prismatic cartilage, maybe from a sawfish rostrum. 2 1 Link to comment Share on other sites More sharing options...
val horn Posted May 22, 2022 Share Posted May 22, 2022 3 hours ago, Meganeura said: Sand tiger that is - tigers are very different. But agreed that 4 looks like a sand tiger tooth fragment! Though the patterning on it is quite strange. I stand corrected. i dont think it is s crab claw because it does not have the curve i expect for the tip of a crab, the length of the finger without minor projections seems wrong. While all crab claws are hallow Many shark teeth have a hollow core while others have a osteodentin core. Link to comment Share on other sites More sharing options...
jonnyquest Posted May 22, 2022 Share Posted May 22, 2022 2 looks like shark cartilage. 4 looks like ghost shrimp claw. Link to comment Share on other sites More sharing options...
Vaughn O Posted May 22, 2022 Author Share Posted May 22, 2022 Thank you so much everyone for the help! I definitely learned a few things from you all. I really appreciate it! Link to comment Share on other sites More sharing options...
shark57 Posted May 23, 2022 Share Posted May 23, 2022 4 is not a shark tooth. It looks like a claw tip 1 Link to comment Share on other sites More sharing options...
jonnyquest Posted May 23, 2022 Share Posted May 23, 2022 Btu- shark cartilage is hard to find ,in my opinion, at that area. Link to comment Share on other sites More sharing options...
Vaughn O Posted May 25, 2022 Author Share Posted May 25, 2022 On 5/22/2022 at 10:08 PM, shark57 said: 4 is not a shark tooth. It looks like a claw tip I found a few of these at the Ramanessin so far. They do seem more chitinous in texture than similarly shaped shark tooth fragments and they always seem to be cone shaped and hollow. I heard ghost shrimp finds are common at this brook. Link to comment Share on other sites More sharing options...
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