Nov 10, 2024 · I found this along the Shark River in New Jersey - is it a very worn shark tooth (no enamel) or merely a suggestive rock? It even has what resembles a cusplet on one side. Also pictured are a couple other teeth fragments from the same area for comparison. Any help would be appreciated!

Feb 4, 2025 · A Horse Tooth, This looks like an "early" Equus Simplicidens, and I have found other somewhat smaller horse teeth consistantly at this location. and then light colored shark teeth. There were many small shark teeth to keep me picking fossils out of each sieve, mostly were this lighter color, not normal for the Peace River..

Nov 11, 2024 · 11-15 - Worn shark teeth, likely odontaspidid 16 - Likely geological, but could be a particularly worn crocodile tooth. 17 and 21 - Look fossiliferous. Heterodontus cf. lerichei? Worn batoid tooth plates? 18-20 - More worn shark teeth, again likely odontaspidid 22 - Definitely a tooth of some description. Trichiurus sp.?

Dec 12, 2024 · Hi everyone, my first post is to ask the community for help in identifying this tooth's species. The rough area where it was found is highlighted in the red circle in the map attached. It came from a small beach in Olho de Boi, Almada, Portugal. Most likely as a …

Oct 21, 2024 · Hello dear fellow forum members. I found a lot of mineralized fish vertebrae, they are mostly jet black, sound like ceramic and are denser then recent fish bones. Similar examples in a local museum where labeled as miocene, while more porous tilly bones from the same spot seem to be from the eem ...

Aug 2, 2020 · Bull shark (Carcharhinus leucas): Dusky shark (Carcharhinus obscurus): With respect to 3, the ranges of the two extant lemon shark species (see below from Ebert 2013) are very different. If the fossil species had the same range as the extant two species, where your teeth were found would be a good help in the teeth id.

Oct 30, 2024 · My assumption was that lamniform sharks didn't really take off until the steady decline of the old Jurassic era regime like ichthyosaurs and plesiosaurs (pliosaurs) into the Cretaceous that were eventually devastated by the Cenomanian-Turonian (OAE 2) extinction.

Nov 11, 2024 · The only one I can identify with any conviction is Sphyrna tiburo (the Bonnethead Shark) the smallest of the genus. They have very characteristic lower anterior teeth and crushing teeth for posteriors (they have a diverse diet including lots of invertebrates).

Nov 16, 2024 · I am looking for help identifying some micro shark teeth I collected from a bulk sample of a Late Cretaceous (Maastrichtian) aged outcrop on the Atlantic Coastal Plain of the US. The scale in the photos is milimeters. Any help would be greatly appreciated. Thank you! @Al Dente @Mikrogeophagus #1 ...

Feb 7, 2025 · When the shark was alive it had probably 2 rows of teeth at the top and bottom visible. The rest was covered with a gingival tissue that protected its young teeth in formation. The more you look inside the jaw (towards the throat) the less teeth are formed. The first thing that forms on a shark tooth is enamel, so the outside.