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Showing results for tags 'white river formation'.
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Found these teeth while hiking at Pawnee Buttes last year and am unsure what they belong too. My top guess would be Oreodont though.
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Hello I found this in the White River Formation in Wyoming. Is this a Hyaenodon ? The block of rock seemed much harder than usual and had no cracks in it. It was more difficult to prep out than other similar fossils (oredonts, archeotherim, Probotherium) that I have found in the same area. I think maybe the harder un-cracked matrix contributed to the nicer quality of the fossil. Lots of amateur prepping mistakes but the matrix was soooo resistant to removal. Just wouldnt pop off nice like it does sometimes and I dont own a respectable sand blaster machine.
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Where can I hunt for fossils in the White River Formation?
fossilhunter21 posted a topic in General Fossil Discussion
Hey everyone! Me and my family are thinking about taking a trip to the White River Formation. But we were wondering what some good places are to go fossil hunting? Thank you, -Micah -
Have you ever heard of Petrified Flame Sponge from Wyoming? I just bought (in the mail) the below piece because I want to look at it under a microscope and I think I can take some interesting pictures of it. It is supposed to be from the White River Formation in Wyoming. See the below cards with it. Marine from the White River Formation doesn’t make sense to me. Fluvial would, but not for sponges. Tsunami in Wyoming also doesn’t make sense. Reworked from older Formation? Ideas on what this is? Just a name for a type of agate? Petrified Flame Sponge Slab, Late Eocene/Early
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- wyoming
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Hello! This is a canine tooth (that has been split in half) that I collected from the White River Formation (I believe Poleslide Member of the Brule) from Weld County, CO. I think it is a carnivore’s canine rather than simply an Oreodont canine just due to its size, but I could be wrong there I suppose. My best guess is Daphoeneus or similar due to its shape, it does not look like Hyaenodon to me, but again, could be totally off there. Pictured is the tooth’s lateral surface, interior (because it was split when I found it) and the “cutting surface.” Thanks!
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Looking for unprepared White River Formation fossils
fossilhunter21 posted a topic in Member Fossil Trades Bulletin Board
Hey everyone! So I have been having trouble finding more unprepared White River Formation fossils that I could buy. So I thought I might ask my freinds on TFF if they know where I could get some. Thanks! Ps. Please PM me with any information. -
I recieved this skull yesterday and have been working on it whenever I have time. The skull is not super complete, but I still like it. Here are the images from the seller:
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- white river formation
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Earlier this month @JD3B and I went a incredible fossil hunting road trip. The title may be a bit misleading, as only one day was actually spent in the badlands. There were however, plenty of good times. We were lucky to have the opportunity to visit a few storied formations, and even luckier to have a couple tff legends to guide us. The first morning was an early one with a 3:00 am wake up. I was at Jacob's (JD3B) by 4:00 and on the road before 5:00. First stop, the Helena, Montana area to visit the world renowned @RJB museum of natural history. We arrived late in the afternoon an
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- spence shale
- green river formation
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Adventures in the White River Badlands of Colorado
Opabinia Blues posted a topic in Fossil Hunting Trips
I just got back from an amazing and very fruitful week of fossil collecting on the White River Formation in northeastern Colorado. The White River Formation is a very easy and fun rock unit to collect vertebrate fossils on. The White River Formation was deposited during the very latest Eocene and the early Oligocene, though the faunal diversity in the areas I was collecting on suggest it was laid down during the Orellan North American Land Mammal Age, which centers on around 33 million years ago during the Rupelian age of the Oligocene Epoch. I am very lucky to have a grand uncle- 24 replies
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- paleogene
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I found this front bit of carnivore jaw while out on my latest fossil collecting trip in the White River Formation of Colorado. Only one tooth is complete, the canine tooth has broken off. It’s too large to be Hesperocyon and the cross section of the canine tooth does not match that of Daphoenus, which I have previously collected material, including a canine tooth, from. That leaves Hyaenodon and the Nimravids. After doing some comparative research with pictures of skulls, I am tentatively leaning towards this being from a Nimravid, as the contours of the jaw line near the socket
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Prepping some White River Fossils - Guidance and advice needed!
Opabinia Blues posted a topic in Fossil Preparation
I have a few really nice fossils from the White River Formation of northeastern Colorado that I need to prep, and given I am a beginner at fossil prep I would really like to gain some advice and guidance from people with experience do I don’t accidentally damage the fossils. The first fossil is an Oreodont skull. The skull is mostly intact, and I was able to extract it from the field without using any glue or stabilizer or consolidant or anything like that, so this fossil is in its “natural state.” The zygomatic arch and upper tooth row are crumbling, but -
I found this very hard piece of rock,unlike the rest of the matrix,I dont know what it is.Its dark in color and is completely unbreakable with the needle(as contrast to the oreodont jaw,which i made a few scratches while prepping unfortunately)
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Hello, I have a large canine tooth (~14 cm with the root, ~6.5 cm with just the tooth) from the White River Formation that I collected this summer on privately held land in northeastern Colorado, and though the fossil in its natural state is fantastic as-is I’m thinking about doing a little bit of restoration on the fossil and am looking for some insights. The tooth itself is from either an entelodont or the rhino Metamynodon, with the shape of the tooth and root strongly suggesting the latter to me (feel free to speak out if you have an opinion one way or the other, though I’m not
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These are from Nebraska. Since it’s not oreodont, I’m lost. Do people find coprolite in this formation?
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Small jaw segment with teeth (Ischyromys?) White River Formation
Opabinia Blues posted a topic in Fossil ID
Hello, this is a small jaw segment from the White River Formation (Poleslide Member of the Brule) from Weld County, CO. This is one of a few jaw segments I cannot white identify. It does not look like the Leptomeryx jaw segments that I have collected (and indeed is even too small to fit that genus), and the shape of the teeth to me do not look like they belong to an Artiodactyl of any kind, so my best guess based on picture browsing is Ischyromys but I could be very very wrong here so I appreciate any help. Thanks! -
White River Formation small incisors - Rodent? Lagomorph?
Opabinia Blues posted a topic in Fossil ID
Hello! This is a small fossil from the White River Formation of Weld County, Colorado. To me it appears to be a set of front incisors rooted to a small piece of the maxilla or mandible. There are no teeth or tooth sockets next to the two that are there, and so this makes them look like the two incisors characteristic of rodents and lagomorphs. Interested if anyone can tell me anything else about them. Two photos are through a stereo dissecting microscope at 20X magnification, the other two, though blurry, should give a sense of scale. The entire fossil is about 9 mm tall, with the -
Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. This small bone appears to be
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Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. The following are two teeth th
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Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. This is a small partial verteb
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Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. These are two small bones that
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I've spent the last three days in Wyoming hunting fossils with Paleoprospectors. Monday was spent on the Lance fm, Tuesday on the White River fm and Wednesday was back on the Lance. The first half of Monday was spent prospecting for new sites along a wide open space. The best find happened early on when a younger guy found an Anzu claw, I was not so lucky for a while as I found only a few bone bits in a mostly scarce area. I continued walking along a ridge overlooking the open grassland until I noticed an outcropping of a light brown/orange colored rock. I decide to test my luck and
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Hey everyone, I was digging in the White River Formation when I found this amazing maxilla of some creature. Through some questioning and conversations with various paleontologists, many people have different opinions of what this is. The responses I’ve had are all different, being Oreodont, Dire Wolf, or a species from the family of Brontotheriidae. The w shaped teeth might suggest Brontotheriidae... What are your guy’s opinions? The maxilla is about 6 inches long.
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This has been in the family for probably 60+ years. I have handled it and seen it countless times, prior to this it has sat in the bottom of a garage cabinet drawer for the longest time, and now I'm bringing it to you! This skull was caked in matrix on one side and mostly exposed on the other before I started working on it (first picture is the exposed side). I think I have the ID correct, I believe it's a Hyracodon skull, I'm looking for confirmation and I'm also curious as to which "sub member" these are found in... Brule, Chadron, or another layer of the White River Formation (I'm new to th
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- south dakota
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I took a trip to Nebraska to collect the White River Formations for the very first time this past summer. I had two goals: recover a Stylemys and an Oreodont skull. I found both! I reported on the prep of the Stylemys in an earlier post on the prep sub-forum. When I saw the Oreodont, I yelled "Bingo, Oreodont!". So that's the name I gave the animal. This post will summarize the discovery, preparation, and reconstruction of the specimen. The skull was not complete, and only about 25-30% of the animal was present, so with apologies to the "Palaeo Police" , I decided that this specimen wou
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Looking for some help with the ID. Mineralized, large and heavy, about 10 lbs. from the white River formation in SD. Distal end of a femur perhaps? Thanks for any help with the ID.
