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Just by coincidence I found a piece yesterday similar to the one that @PaleoNoel posted. Pretty sure it’s dog, would appreciate some input. Sorry no scale, current out hunting. North central Nebraska. Miocene. Thanks @Nimravis @siteseer @fossillarry

@Harry Pristis identified one of these for me not too long ago. Could I possibly be lucky enough to have found another one? This one is quite a bit smaller than the last one, but still a big tooth! L-32. W-23.

I am looking for confirmation of the identity of this rodent jaw from the White River Group of NW Nebraska. I am thinking Ischyromys. Thoughts? Scale is mm. Occlusal view enlarged and not to scale. @jpc, @Fruitbat, @Nimravis

Hello All, I am hoping someone might be able to tell me what this is, or what it was a part of. A LONG time ago we were traveling the country, we stopped in Nebraska and Kansas and use to backpack everywhere. We found this in the sand one day after a hard rain the night before. We took it home, as we didn't really know what it was. We are thinking it is a fossil of some sort. So the item was found in the north west section of Nebraska. Was found in 1993 and sat in a safe since. I pray someone may be able to shed light on it.

I collected thousands of micro Squamate (lizards, legless lizards and snakes) specimens from anthill matrix from my sons’ Eocene/Oligocene, White River Group, M&M Ranch in Nebraska in 2016 and 2017 that I donated to the Smithsonian Institution. I spent over 3,000 hours over a year and a half picking the specimens from the anthill matrix. All of the squamate specimens have been with a squamate researcher in Germany since late 2017/early 2018. Unfortunately Covid and two other major projects that the researcher was working on, a major Messel Pit publication and a climate paper, delayed the study of my specimens. However, based upon recent communications with the researcher, the study of these squamate specimens should begin in earnest this summer. Because my specimens closely span the Eocene/Oligocene boundary in Nebraska, the researcher is eager to use these specimens to describe in practice his climate theories and how climate affected the evolution of squamate species. I just had a major publication, Korth Boyd Person Anderson 2022 Fossil mammals from ant mounds situated on exposures of the Big Cottonwood Creek Member of the Chadron Formation latest Eocene early Oligocene Sioux County Nebraska, published this May on the mammal micro specimens from the M&M Ranch, that I donated to the South Dakota School of Mines Geology Museum, and look forward to a major publication on these squamate specimens. Below I’ll show a few of the donated specimens and hopefully use this thread to update the progress of the study and eventually the progress of the publication. Below are a few pictures of the anthills that the Squamate specimens came from. The Squamate researcher currently has specimens from 19 different anthill sites in the flats (latest Eocene to early Oligocene) of the M&M Ranch. Below are Squamate specimens from several of the anthill sites, so you can see the large quantity of specimens that I found from each anthill site: A few pictures of the lizard Specimens. Lizard skull cap: Lizard premaxilla: Lizard jaws: Lizard osteoderms. Glyptosaur osteoderms. These are the most common shape found. Note the variety of colors. Note these are not Peltosaurus per the researcher. Additional Glyptosaur (Not 100% sure of this ID)osteoderms of different shapes: Another species Osteoderm: A few pictures of some amphisbaenian (legless lizard) specimens. Amphisbaenian jaw pieces: Amphisbaenian vertebrae: Snake skull pieces and jaw pieces are rarely found as fossils because of their fragile nature. Snakes are typically described and identified by their vertebrae. Snake vertebrae: I also sent over 200,000 (number estimated based on weight and weight of 100 specimen samples) cranial and post cranial bone pieces/fragments that I could not recognize to the squamate researcher. He picked several thousand squamate cranial and post cranial bone specimens from these bone pieces/fragments that will also be part of his study. Below is a picture of these bones picked from a single anthill site, so you can see the quantity of these bones. Marco Sr.

By some vast, cosmic alignment of karma, snolly has become the possessor of a horde of material, deaccessioned from a museum's abundance. Information is scant, but "Oligocene" and "Nebraska" are offered as clues. The foil wrapped specimens had apparently lain in benign neglect for a a generous span, the bone rests in pieces with sheets of dried, peeling consolidant and crumbling matrix. The specimens appear to be limb bones and Oreodont is the donor that presents as likely. At present, snolly is leisurely joining the puzzle pieces and removing old consolidant (white glue?) and matrix. Please glance at the examples pictured and offer any insight as to their identity. Here are a couple typical pieces. Note the detritus of peeled consolidant.... This piece is perhaps a tibia with sherds of fibula attached, hanging precariously by the dried adhesive....

Ok I thought I had started to be able to ID bovine teeth and jaws and then this threw my off. This is from a post on Facebook - found in a cave in Kansas. I have posed here with he user's permission. Why is there a three-lobed molar in the middle of this lower jaw? In the past I had though the m3 for cow/bison was the only three lobed molar. But some searching online is telling me otherwise. Also the m3 here looks two-lobed. Can someone clarify?

No idea what this is from but it is in really nice shape and completely fossilized. North central Nebraska. Miocene

Hello!! Just wanted to share with the forum some of my fossils and bones that I do not need identified but would love thoughts on nonetheless. The elephant bone is of a four tusker- the upper part of the tibia, and completely mineralized, and very heavy. It is anywhere from 13-15 myo. The tortoise shell frags include the lip of the shell, as well as a nice slab of the plastron- found separately, but in the same creek. Tortoises were in Nebraska 8-15 mya. The horse tibia has been identified as either the tibia of the small three-toed horse Pseudhipparion, or the one toed horse Protohippus. All of these were found in Nebraska in a creek that runs through the Valentine and Ash Hollow Formations, both Miocene exposures. Let me know your thoughts!!

Hello all. First of many IDs I will be requesting of the fossils I have found in the Verdigris Creek of Northeastern Nebraska. This creek runs through the Valentine Formation which is roughly dated to 15 million years old, but is also known to cut through Pleistocene exposures. This bone I found has almost certainly been gnawed on- it matched up to the size of one of the larger stem hipparions found around here, but I am still unsure whether it could possibly be camelid or anything else. Let me know your thoughts!! Thank you.

Just sharing some more fossils I had the pleasure of getting identified. Again, from Northeast Nebraska, found in a creek that runs through both the Valentine and Ash Hollow formations. While there, I had the privilege of working at a fossil site absolutely FULL of complete teleoceras skeletons, and was able to ID the femur cap with help from the paleontologist there- the little articulated lip was the perfect match. I attached a photo of the femur another species of teleoceras (the only photo I could find of one) so you can see the comparison. The rib matched the thickness and shape of the rhino ribs there and has appropriate mineralization for its age. Let me know what you think!

Hello all! Like my other finds, this was found in northeastern Nebraska in a creek that runs through both the valentine and ash hollow formations, which are Miocene, as well as some Pleistocene rock. I’m stumped on this one- some animals pieces I’ve found in the creek include bison, rhino, tortoise, horse…but the modern cow gets thrown in there a lot. This is fairly mineralized… anyone have any idea?

Hello all, this bone has given me a fair amount of trouble. Several identification attempts have come up relatively fruitless- my running idea is likely an elk. Again, where I found this cuts through early Miocene exposures up to modern day- this bone is mineralized enough to be late Miocene, but I could be very mistaken. What puzzles me is the hole in the middle, which appears to be an invertebrate burrow? I’m unsure of any invert that would possess the ability or desire to burrow into the severed toe of this animal, as it offers not much at all. Let me know your thoughts. Thanks!

I just donated hundreds of micro-snails (most 2 to 3 mm) from the White River Badlands, that I picked from anthill matrix from my sons' M&M Ranch in Nebraska, to the Delaware Museum of Natural History. A group picture of the micro-snails: Some individual pictures of the micro-snails: A figure from Benton Terry Jr. Evanoff McDonald 2015 The White River Badlands Geology and Paleontology which identifies most of these micro-snails: Marco Sr.

Serious, experienced replies, please! This 0.5 cm long object is attached to a broken coprolite from the Eocene/Oligocene of NW Nebraska. Trying hard to figure it out. Wrong twexture for a tooth and it doesn't look like a seed, either. I have a guess, but right now a guess is all I have. Any coprolite specialists out there? I know the pictures could be better, but I don't have a microscope out here in the field.

Can anyone ID this ball joint? It was found in SE Nebraska. It looks old to me, and it feels like heavy rock. The golf ball is for size comparison. Any help would be great!

Greetings, all! After exploring outcrops and spoils piles from Quebec down to Florida, we are heading west from Delaware to Crawford, Nebraska and back this fall. Planning to stop by Sylvania, OH and Clear Lake, IA. Probably Richmond, IN. Any other suggestions? Thoughts on these three?

I was in the badlands of nebraska in May and found a half turtle, dug it out and brought it home. However I did not pack it well enough to survive Fed Ex it was bounced hard enough to crack the internal mud into multiple pieces. I am now trying my ability on a 3d turtle puzzle. I multiple pieces yet to place, but I have one piece that I have not idea where it belongs. It is a little different. After I removed the turtle from its resting place in nebraska, I looked around the extraction site and the immediate area for anything I missed. this piece is from that final harvest. IIs it a piece of skull or just an odd looking piece of the edge of the shell, or something else again. All help is appreciated

Any ideas on who this belong to? I’m pretty sure this is fossilized but not 100%. Area is almost entirely Miocene.

OK gang, this one has me stumped. This is the last specimen from last year's final trip to the Kiewitz shale, Stoner Limestone, Stanton formation along the Platte River in Cass County Nebraska. I thought at the time, and until a few hours ago, that this was one of the disc shaped oncolites that have been found at that site and related sites in the area. I was playing with a recently LED upgraded microscope and found it had cellular structure barely visible. so I decided to do a laborious prep on it with a bicarb blast. It is in fact nothing I have ever seen before and is very fragile. Frustratingly, when I stabilized the fragile little thing, it made the structure less visible. So, I had to get creative as I realized too late all my scope cameras and adapters are sitting on my desk at work... Anyway, I have no clue what this is. the simplest solution is a disc shaped bryozoan, but the more I worked on identifying it, the less convinced it is within my skill level to identify. So, here we go:

Found in north central Nebraska. Miocene. I’ve had this in my collection for a while, I don’t know why I overlooked getting it identified. Really a nice little specimen.

I was told by someone familiar with the location where this was found that this is mastodon ivory. They said that it turns this blue and cream color in this area. Just wondering what the experts think. Thanks

Ok gang, been a while since I posted some fossils. I’ve been practicing my prep work and trying to get around 2500 specimens organized in my personal collection in addition to the Uni’s collection and a dozen other projects! Brachiopods are a weakness when it comes to ID. These are specimens from the last 17 years, some have my old labels and such. Unless Otherwise Noted all have the following location data: Sarpy and Cass County, Nebraska, USA Kiewitz Shale Stoner Limestone Stanton Formation #1 some sort of productid

Finding a complete specimen is my white whale. Usually only find small fragments, these three are my most complete. Am able to use a few bits to get a “reconstruction” cannot figure out what these are. thanks in advance!