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I have been collecting a locality in SC that is Eocene (Priabonian) in age. I have found a squalid tooth (I personally find it most favorable to Squalus weltoni) and 3 squalid-like teeth, however I have no idea what these could be. Unfortunately, the deposit is not kind to the fossils contained therein so they are quite beat up and missing the enamel. The definite squaloid tooth is the bottom one on the graphic, and the other 3 (top and middle in the graphic and the standalone) remind me of a squaloid at first glance, however don't appear to be. There is only one paper on the selachian fauna of this deposit, and there are no teeth comparable to these in said publication. The age is Eocene, Priabonian and locality is in Aiken, SC. The standalone is the same size as the top one in the graphic (~5mm). Any potential leads welcome!

Looking for thoughts of what this might be. It was found in Bastrop County, Texas and was found in a formation I can only date to the Eocene. It was surface collected after eroding from a layer of ironstone, the specimen being much denser than ironstone. Although likely not the case, the wavy straw-like structures (that are approximately 1mm in diameter) remind me of the coralloid roots found on a cycad or the vascular structure of a palm. There do appear to be rings or layers visible in the cross section. The scale shown in the photograph is in inches. I appreciate any and all attempts to identify. GB

Hello, Another weird fossil found in Al Ain close to Jebel Hafeet. It's very detailed and tuberculated all over. Looks similar to some crab pieces I've seen.

This is a re-post of a topic I started late this last summer, but got lost during the August forum migration. Late in July I took a trip with a few friends out to the American Fossil Quarry and Fossil Butte National Monument to hunt for fossils out of the lower Eocene Green River Formation. The Green River Formation is a lagerstatte which is perhaps the best site in the world for articulated fossil fish, many of which also display varying degrees of soft tissue preservation. Fossils from this locality are mined commercially and are ubiquitous on the fossil market. Living in Denver, the Green River Formation is only a few hours away by car and I've always wanted to plan a trip out there to collect it, which is very easy to do and fairly cost-effective thanks to numerous pay-to-dig quarries where you get to keep essentially everything you find. I decided to plan a dig at American Fossil Quarry, which is one of the more popular quarries. I managed to convince two of my friends to come with me, and we spent a day and a half (12 hours total) at the quarry while camping at the nearby Lake Viva Naughton. It was my two friends' first times ever hunting for fossils, and they both report that their expectations were far exceeded at the quarry! There's a very good chance this trip was the start of the making of two new fossil fanatics. We had a blast out in the quarry, with the thrill of discovery doing plenty to stave off the oppressive sun and desiccating dust. We also made sure to visit some of the fossil shops located in Kemmerer and spent some time at the museum in the visitor's center of Fossil Butte National Monument, which is fantastically well put together and was so awesome to see. Each of us found plenty of treasures, including lots of Knightia and Diplomystus fish as well as coprolites (fish, stingray, and turtle), scales, occasional plant material, and even a few rarer fish. Here's some pictures from our adventure: Myself posing with a very nicely preserved Knightia eocena. My two friends hard at work splitting shale for ancient treasures. A few of my day one finds on my shelf. A very nice partial Priscacara found by one of my friends. A small stingray with associated Knightia found by a different participant the first day we were there. A mostly complete Amphiplaga brachyptera (one of the rarer fish) found by me, associated with a Knighta alta. Only the tail and part of the dorsal fin is missing, the rest of the fish is intact! Easily my prettiest fish: An absolutely perfect Diplomystus dentatus found by me the second day. One of the displays at the visitor's center of Fossil Butte National Monument. Cheers, and thanks for reading!

Hello again, Here's another Eocene fossil from Al Ain, found close to Jebel Hafeet. There are also some nummulites in the matrix. I'm guessing it's a coral of some type. The preservtion is quite odd, almost like there's some iron oxide layer present. I've only seen this a handful of times, usually only on fossil gastropod shells. Edit: Forgot the scale! They honeycomb structure measures just under 1cm across (less than half an inch)

Here's my Basilosaurus isis tooth . This is attached to a piece of jaw.

Hello everyone, I would appreciate if anyone can tell me if these are fossil wood or bone. It is from bracklesham bay (eocene). It is 1cm long Sorry if the pictures aren't clear enough

Curious if anyone recognizes this beetle (?) from the Florissant Formation (Eocene; Teller County, Colorado). I had a look through "The Fossils of Florissant" (Meyer 2003) but did not see an obvious match.

Here are my 2 best finds from today from my local Eocene pit. A really nice dark colored Otodus auriculatus (ric) and a nice little sixgill cowshark, Hexanchus agassizi. The ric is about 2.5 inches.

Thought I would share with you folks a little project I just finished up... until next field season starts. Last spring/summer I collected from two Eocene sites where I have found small mammal teeth in the past in the hopes of finding more small teeth (and bones). One site I screen wash; I quarry on site and find largeish bones and then scoop up the stuff I have excavated for screen washing. The highlight of in situ quarrying last spring was three turtle scapulae and a very small mammal maxilla. I screen wash it twice. A five gallon bag will break down to about a pint (not sure the metric equivalents) of rocks and fossils. Lots of broken pieces and lots of fish bones, and some reptile pieces such as lizard jaws and snake verts, and then a few mammal teeth. The other site is a quarry; I sit there and break rocks looking for little fossils then prep them under the microscope when I get home. I got about 30 mammal teeth and one jaw with two teeth in it that day. To organize the collection, I mount them on toothpicks and store them in 2 inch square plastic boxes. (Numbers 121 and 122 are yet to be found). Then I take photos and create stereophotos of each tooth. I am a big fan of stereophotos so get a kick out of this. Here are some pix for you all to look at. I have shown stereophotos here before, and there are instructions online on how to see them, but the basic idea is to relax your eyes let the two images merge into a middle image and then focus on that middle image. It will pop put at you in 3D. Or you can use a stereoviewer if you have laying around. (Tool's last cd came with one as one of the band members is also a 3d fan as is Brian May of Queen). I confess that my specialty is finding and prepping. I am not an expert at IDing these things, but where I can say something about the photo, I will. Each of these specimens is measured in millimeters and mounted onto a round toothpick. No scale bar, but the toothpick is about 2mm in diameter and will give you an idea of size. I take the photos through the eyepieces on my microscope. I do not have photostacking software so many have focus issues. In a perfect world I would also take pictures form the sides of some of these, but hey, there are more fossils to work on. The teeth are all seen looking at the occlusal (=chewing) surfaces The first batch of teeth are from the Washakie Fm of Sweetwater County, Wyoming. Bridgerian (middle Eocene) in age. These are the screenwashing finds 1. This is a very small upper third molar of a carnivorous or insectivorous mammal: I found this tooth in two pieces. Yo can see the glue line at the base of the high peak. 2. an upper molar 3. another upper molar 4. a rodent? sacrum; two fused verts: ( a contender for coolest fossil of the year) 5. A very interesting ungual. I have not seen this sort of toe bone before but I actually found two of these in my screen washings this fall. 6. This is the mammal maxilla that I found in the field. It includes two molars and a premolar. This is a strong candidate for my best find of 2023. 7. And this is a lower jaw with one molar. The next batch are from the quarry site in the Wind River Fm of Fremont County, Wyoming. They are early Eocene, probably Wasatchian in age. 8. another upper molar 9. a small astragalus 10. and still another upper molar 11. a very small premolar 12. A third lower molar 13. I think this one is a rodent molar And that's it for now Thanks for looking.

Is this big round thing a fossil? It is next to a rock with fossilized shells I found. Where: Las Llajas Canyon, Simi Valley, California - dating back to Eocene Period, known for many fossils as this whole area used to be under water. Weight: 6.16 pounds Thank you