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Hello everyone! I recently acquired the attached fossil as a jaw fragment (with additional bone) of Lambeosaurus lambei. It's supposed to be from the Hell Creek Formation - at any rate, it was found between Jordan and Fort Peck Lake in Montana, and I have no reason to doubt this information. From what I understand, however, L. lambei is a little earlier than Hell Creek and the very existence of lambeosaurs in Hell Creek is a matter of some debate. I've now wondered if there's any obvious reason why this couldn't be a jaw fragment of Edmontosaurus annectens instead. As I'm a complete novice, your insights would be more than welcome. The jaw piece is 21.5 cm (about 8.5 in) long, the bone 26 cm (about 10.2 inch). Thank you very much! Nick

Tyrannosaurus rex (Osborn, 1905) Late Cretaceous, c. 67 Ma Hell Creek Formation, Isabel, Dewey Co., South Dakota, USA. It has been a dream since childhood to own a Tyrannosaurus rex tooth and my dream came true with this recent acquisition of a gorgeous T. rex 1.5” dentary tooth.

Triceratops horridus (or prorsus) (Marsh, 1889 /1890) Late Cretaceous, c. 67 Ma Hell Creek Formation, Powder River Co., Montana After acquiring a gorgeous T. rex tooth, I could not resist the opportunity of acquiring a tooth of its likely prey - Triceratops. I’m aware of the difficulty in identifying ceratopsian teeth and the impossibility of distinguishing between T. horridus and T. prorus. As Triceratops is the most commonly encountered genus within the HCF, this is labelled as being Triceratops horridus or prorus in my collection. I understand that the locality is known for T. prorus so it may well be that this is T. prorus. I love this specimen for it still having the root - so unlikely to be a shed tooth.

Hi all, I have the choice between these two T. rex teeth. One is shorter and fatter, 1.5” and the other longer around 2 - 3/8”. Former less cracked and better colouration. Latter longer but has some infill. The longer one base cross-section is a compressed oval since the base is the top of the root. The tooth body is not pinched. This and the larger size makes it a T rex tooth (according to the seller) and it is from Hell Creek, Powder River Co., Montana. There is also possible wear near the apex. The shorter one is perhaps “cleaner” with no infilling and is from Hell Creek, Isabel, So. Dakota. Shorter one “cleaner”, no infill but smaller. Longer one a little longer but has some crack infill. I gather that the length just might trump the presence of infill? Which would members recommend I go for? Thankyou

I found this bone on a fossil hunting trip in North Dakota, it was identified as a theropod, probably a T. Rex. Can anyone verify this claim? Thanks for any responces! (The ruler is mesuring in centimeters)

On Saturday I went to a Garage Sale that was 20 minutes from my house. This sale was for fossils / rock and minerals, most of them in beer flats. These items were from older collectors and there was a wide variety of fossils in the yard and garage. I believe that many of the flats that I bought are from sites that are no longer accessible to fossil collecting and most of these were collected in the early 1990's. While there I ran into FFM Rich @stats. Below are a couple pics of how it was set up. The flats of fossils that I purchased ranged in price from $1.00 to $10.00, with the majority of them in the $2.00 range. The next picture shows the back of my CRV after spending 2 hours at the sale looking through the boxes. I first thought that I had spent about $100.00, but when I got home and counted my money I discovered that I only spent around $65.00. This sale is reminiscent of some of the flats of fossils that I buy at the MAPS Hotel show. This post might take a couple days to complete since I have not gone through everything and I am trying to ID the fossil localities of some of the flats. I will start out with some of the ones that were identified. The first flat is from the James Dick Quarry near Brechin, Ontario (Ordovician). With some help from @Monica I was able to confirm that these came from that locality and that the greenish tint around these fossils is Glauconite. I believe that the first picture below is of the nautiloid Monomuchites, I also believe that the one on the left in the second picture is also one. Here are a couple other fossils from this flat, I believe that I still have one more flat to go thru. If any one has ID's on any of the fossils, please let me know. Next up is a flat of fossil odds and ends from a sight near Buffalo, South Dakota (Cretaceous Hell Creek Formation). There is one or two bag fulls of some pretty soft shell turtle shell pieces as well as bone fragments that had the id's of "Reptile" and "Dino", but again they are just fragmentary pieces. The next 2 flats contained a lot of fossils from 18 Mile Creek, New York. The fossils found here are Middle Devonian in age. The first 2 pics show the larger pieces. There were many Horn Coral and if I have my ID correct, they are Sterolasma rectum. There were also many beautifully preserved brachiopods, the larger ones are Athyris spiriferoides. This one I believe is Rhipldomella vanuxemi. And I believe this one is Mucrospirifer mucranatus. There were also trilo-bits found in the flats, such as Eldredgeops rana- And Greenops barberi-

Hi there! I'm looking to get some help with several Hell Creek South Dakota fossils. Most of them I have a general idea, but I am just not experienced enough to make much more than an educated guess. So I welcome input from others. I've had this piece for several years, and apparently I have learned something because when I dug it out of the fossil box, I immediately recognized it as the root of a tooth. Upon some searching, much of it on this forum, it seems that it is most likely a Trex or nano rooted premaxillary in pretty rough shape. Unfortunately most of the serrations are either missing, or so worn that they are barely visible. A couple other pictures https://drive.google.com/open?id=1R3voDuQ7__okgbEdJmpQhVvXuPYOzsEb https://drive.google.com/open?id=1RJ2tyb15gSq5t47zPaoqw1aANLCw_w-3

I want to go Fossil Hunting in Hell Crek and was wondering if anyone would give me some good spots to go for a beginner as I am a Herper (I like to catch reptiles and amphibians) and would like to get more into the original reptiles. Thank you!