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The three shark teeth below are all from the Calvert Cliffs (Miocene) in Maryland. I have the two on the left (A. and B.) tentatively identified as Isurus desori, but I'm still learning my mako IDs, including the differences between true makos and Carcharodon hastalis. Hopefully these are identifiable despite their root conditions. I don't know if the tooth on the right (C.) is identifiable or not. Thanks in advance for any help!

planning a trip for the weekend to Cape Ann, Massachusetts (Gloucester-Rockport). I understand that fossil shark teeth are not going to be found how about modern shark teeth? or anything else interesting? (Other than the world's best fried clams) ps. 2 weeks later a weekend in Cape Cod which according to previous posts on TFF is also devoid of fossil shark teeth

hello all sorry no photos yesterday was my 19th trip to Big Brook and i decided to brave the elements despite the forecast (actually i look at 2 weather sites and their forecasts were completely different) No lightning and only 45 minutes of rain i have been looking at alternative ways to access Big Brook beyond just the Preserve. Yesterday i hit the Kovalski Tributary and a couple of even smaller streams feeding that. The highlight of my search was my first coprolite. A few shark teeth, crab claws, a fragmocone, and a bone fragment but definitely not good pickings compared to Big Brook within the Preserve. What i found the most of was garbage; metal, plastic and mostly glass and i must have carried out 10-15 pounds. But, bottom line, any day there is a good day. 7am til 12 noon and did not see or hear a single person. Perfect Covid activity. 45 minute drive each way, just me and the Grateful Dead. Just costs gas & tolls . And i get to forget politics or work or any other distractions and be "totally in the moment". Already looking forward to next saturday's trip and daydreaming about the great stuff i will find

Hey, I've got this meg that I think could be pathological, but I’m not sure. Here are a couple pics.

I have a few shark teeth from Belgium here. Belgian shark teeth are not my area and I'd appreciate some help identifying these. They're from the Antwerp Miocene, around 1/2" each. Thank you, Bellamy

Can Anyone ID the species ? They’re extremely tiny and found in big creek preserve NJ

This shark tooth came from a bulk package, and I’m thinking it’s otodus? But i’m not sure, it’s a little over an inch, and from the Khouribga phosphate beds in Morocco

VERY new to all this - like, started internet research a few days ago. My 4 year old son is obsessed with sharks, so I am taking our family to mataoka beach to look for some shark teeth fossils. I picked up some colanders and sieves from the dollar store to make double level shark tooth sifters, similar to some stuff I saw on this forum. **But how do I know where or which stuff to scoop sift for sifting?** Thanks in advance for any advice - links to videos especially appreciated!

Had to take a day off from work to take advantage of a day without rain. There were mushrooms all over the forest. Some finds would have been better if not broken.

This could have easily escaped, if it wasn't for the watchful eye!

Hi all, My wife and I often find these on the beach at Walton on the Naze, Essex, UK and have assumed that they are striatolamia from the extreme side of the jaw. Are we correct or are these a different species? Thanks in advance and apologies if I have used the wrong terminology. Best regards, Carl

Found this mini megalodon tooth well embedded in the rock. Took me couple of hours and a lot of patience to take it out!!

My 7 year son spotted this gem the other day. Such a beauty isn't it?

I recently bought some fossil shark teeth from the St. Johns River in Florida (recovered by a diver), which includes some megs and makos. A couple of the teeth--pictured below--also look like they could possibly be great white teeth, but I'm not sure. These are approximately the same size--the tooth on the left measures 2.3" and 2.1" along its slants and the other measures 2.1" on both sides. I think the one on the right is probably a meg as it looks like there may be thin bourlette. The one on the left doesn't appear to have a bourlette; however it obviously has some root wear, so it's possible a bourlette has eroded away. I've included additional photos below. What do you think about these? Any help in ID'ing them is much appreciated. Thanks! More pictures of the tooth on the left: More pictures of the tooth on the right:

Hello everyone, in addition to posting my other topic today, I am going to post this one. With the summer coming to a close, I am preparing to go back to college in Ohio and continue my study of Neuroscience and Mathematics. The rain in Ohio and ID'ing NJ fossils in the ID section often make me lament all of potential NJ hunts I am missing out on because I am at school. So, I thought it would be a good idea to collect micro matrix using a window screen and stock several buckets full of gravel to look through during the semester. Over the last two weeks or so I've had the opportunity to do some early looking and will share my finds in this post. Hopefully I will be able to make many more NJ Micro trip reports during the course of the semester. I am still figuring out the proper mixture of lighting and camera angles. Also, you may notice it in this post, but I am adjusted the properties Exposure, Shadows, and Sharpness to get the optimal view of the fossils. The black borders and resizing of the photos were automatically done by a Python script I wrote. Perhaps with more micro reports I can become better at ID'ing what I find (there are still many things that I have found where I am at a loss for what they are) and taking photos. Enjoy. Here is my setup currently Here is some gravel I've looked through FOSSILS Format: <suspected ID> Maybe Rhombodus laevis AMALGAM OF RAYS 1 (tooth) 2 (tooth) 3 (tooth) 4 (tooth) 5 (tooth) 6 (denticle) 7 (denticle: In middle) Lonchidion babulskii Ptychotrygon sp. 1 2 Ischyrhiza mira 1 2 3 4 5 6 Squatina hassei (potentially) Hadrodus priscus 1 2 3 Ischyodus bifurcatus SHARK TEETH MISCELLANEOUS BUT POSSIBLY DIAGNOSTIC 1 2 GENERAL FINDS 1 2

I’ve recently bought some fossil shark teeth online to expand my collection beyond the local Maryland fauna (Miocene from the Calvert Cliffs and Paleocene from the Potomac River/Aquia Formation), and it occurred to me that perhaps there are some forum members who would be interested in sharing some of your finds or extras in exchange for mine. The things I have to offer are shown below—mostly fossil shark teeth and a few other things. These aren’t all perfect, but there’s a good variety, including some less common species. I’ve collected most of these myself and have also listed a few purchased teeth for trade. If there’s something that interests you, hopefully we can help each other build out our respective collections. I have particular interest in adding Ptychodus sp. and Cretodus sp. teeth from the Cretaceous to my collection, but I’m open to a broad range of offers. U.S. trades are likely easiest for shipping, but I’m happy to consider international offers too. Thanks for looking! Quick summary of shark teeth available for trade by species (also see photos below): Miocene from Calvert Cliffs - Alopias latidens (2), Carcharhinus sp. (5+), Carcharodon hastalis (1), Galeocerdo aduncus (2), Hemipristis serra (4), Negaprion eurybathrodono (5), Notorynchus cepedianus (1), and Physogaleus contortus (4) Paleocene from Potomac River/Aquia Formation - Anomotodon novus (2), Cretalamna appendiculata (2), Palaeohypotodus rutoti (3), Paraorthacodus clarkii (1), Striatolamia striata (4+), and unidentified sand tigers (4+) Miocene-Pliocene from Purchases - Carcharocles megalodon (1), Carcharodon hastalis (2) I. Shark Teeth Available for Trade A. Miocene shark teeth from the Calvert Cliffs (unless otherwise noted): Alopias latidens (thresher shark) - both pending Carcharhinus sp. (gray sharks) – I also have others available. The tooth on the far right is from a Miocene exposure in Virginia (Westmoreland State Park). Carcharodon hastalis (white shark, predecessor to the great white) Galeocerdo aduncus (tiger shark) – The smaller tooth on the right is from a Miocene exposure in Virginia (Westmoreland State Park). Hemipristis serra (snaggletooth shark) - tooth A is pending Negaprion eurybathrodono (lemon shark) Notorynchus cepedianus? (sevengill cow shark) – This is most likely N. cepedianus though it’s a partial so I don’t know if it can be definitively ID’ed. Physogaleus contortus (tiger-like shark) B. Paleocene shark teeth from the Potomac River/Aquia Formation: ** I’ve done my best to identify the various sand tiger shark teeth below, but I may have made some mistakes. Anomotodon novus (goblin shark) - both are pending (though I also have others) Cretalamna appendiculata (mackerel shark) - tooth B is pending Palaeohypotodus rutoti (sand tiger shark) – I am pretty sure these are all P. rutoti due to the presence of basio-labial folds (see this elasmo.com page), but I could be wrong. Paraorthacodus clarkii (no common name shark) - tooth is pending Striatolamia striata (sand tiger shark) – I have others available too. - teeth A and D are pending Other non-striated sand tiger shark teeth – I’m unsure of the species on these; some may be Hypotodus verticalis. I have others available too. - tooth C is pending C. Purchased shark teeth available for trade: Carcharocles megalodon – This tooth was collected by a diver from the St. John’s River in Florida and measures a little over 2.75” slant height. I believe these are both Carcharodon hastalis – They are from an estate sale and their original collection location is unknown. They measure 1.7” and 1.2” slant height, respectively. II. Other Fossils Available for Trade A. Miocene from the Calvert Cliffs: Ecphora gardnerae? (gastropod) – If this is E. gardnerae, it’s also Maryland’s state fossil. Drum fish teeth Ray crushing plate fragments – The two v-shaped ones on the left are Aetomylaeus sp. and the other two may be as well. I have others available too. - plate B is pending Fossil corral – I believe these are Astrhelia palmata. I have others available too. Fossil sand dollar fragments – I have others available too. B. Paleocene from the Potomac River/Aquia Formation: Ray crushing plate fragments – I have others available too. Turritella sp. steinkerns/casts – I have others available too.

Hi. Here are some cool finds from the past week after going through the Lee Creek matrix. I feel pretty confident in most of my IDs. Couple of them I have no idea. Thanks for any feedback! Much appreciated in advance! Enjoy the pictures. 1. I believe this is a catshark tooth - scyliorhinus 2. Tope shark - Galeorhinus 3. I have found a couple of these teeth that are identical to this heart shaped tooth. 4. Hardnose Shark - Carcharhinus macloti 5. I thought this was Dogfish Shark but the more i look at the root, i think I am wrong. 4. Is this a mouth plate from a fish? 5. I think this is going to be put in the Fish tooth pile. 6. Is this a broken tip of whale or dolphin tooth? Normally i would just assume fish tooth but it looks different than the others I have found. 7. Another one for the fish tooth pile?

Hello! Last time I was here I posted about 50 pieces of barnacle which I thought were teeth. Good news is, this time I actually have teeth! I sent these in to another fossil ID place, and they identified a few of my teeth as possible lemon shark, and the 8th from the left as a possible C. hastalis. If anyone can help identify more specifically what sharks the teeth came from I'd really appreciate it!! Also, the big brown fragment on the far right in these pictures they identified as some kind of bone fragment- maybe it's a long shot but do any of you know what it could have come from??? I'm really curious about that one now. (Ignore the second and third from the right. They aren't interesting.) I can post more pics if needed.

Hi everyone, I have here a 5.6" Megalodon tooth. Before considering it further, I'd like to know if anyone can see repairs on it. The claim is that there are none. I don't see any, but I'm also not too experienced with recognizing them yet. The images aren't too large. Unfortunately, they're the best quality available. I'd appreciate more eyes on this in any case. Thank you, Bellamy

A bad morning in big brook is better than a good morning almost anywhere else. And a good morning is..... bunch of shark teeth, shark vert, an unidentified vert, deer leg, rib fragment and atlas vertebrae (who decapitated my Bambi?). A good size belemnite and a pice of pottery

Okay so I have a couple of questions regarding fossil formations in Eastern North Carolina. In recent years I have been hunting for shark teeth in rivers and creeks of North Carolina. Occasionally we will come across deeply cut banks with exposed layers containing tightly packed shell material. I’m curious as to what this formation is called, as well as if this contains fossils such as shark, fish etc. If it does not, what layer does contain these fossils, and is it located above or below the above mentioned layer? I’ve been researching this however, the shell formation I mentioned is the only layer that I can recognize as containing fossils. What do the different formations look like? Just trying to get pointed in the right direction! Thanks guys.

Hi all, can you please help me as I’m in two minds about this as it looks for all the world like a rose thorn but ‘feels’ the same as the sharks teeth we find here in the beach. We usually find sand shark in abundance but this doesn’t look like any of the teeth I have found before. What do you think? it would have been from the London Clay beds if it is a tooth. thank you! PS the dimension on the tape measure shows it to be approx 1cm in length.