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Showing results for tags 'lance formation'.
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The title says it all. It’s a nice tooth, but I’m going back and forth on it because the telltale wear patterns for either group are not present as far as I can see. I apologize for the poor quality of my camera phone picture.
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Hi, I am interested in this tooth, and wondering if someone can narrow it down further. It is theropod tooth, from Weston County, Wyoming, Lance Formation. Waiting to hear back from seller on exact measurement, but included a photo of it near a tape measure. Thanks
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I’ve had this piece of a mystery bone, I think it may be an ungual, from the Lance Formation for a while now but haven’t been able to identify it. Finally decided to post it here and see if I can get an opinion. Any help is appreciated!
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Found this three years back in the Lance Formation. About 50 miles out of Newcastle, WY on a dig trip. Going through some bones I haven’t tried to ID. Any suggestions on this one? It has nice bone surface in a few spots, but isn’t familiar to me.
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From the album: Miscellaneous
Uncommon Mesozoic mammal (multituberculate) tooth from the Lance Fm. ID'd here.-
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Edmontosaurus annectens may have been the largest dinosaur in the Hell Creek/Lance Formations not T rex. Here is an article that gets into the specifics. https://thesauropodomorphlair.wordpress.com/2021/02/10/size-of-the-duck-titans/
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Hey y'all, recently got this Cretaceous mammal molar from the Lance Fm., Weston Co., WY. It's about 8 mm long. I'm thinking Didelphodon sp.? @jpc
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Hey everyone, I just wanted to post my find of the day! I was working through some of the Lance fm. channel deposit conglomerate from this summer's trip out west and when I was taking a closer look a bone fragment I noticed what appeared to be the glint of enamel just below it. I proceeded to uncover more of it and realized it was a tiny mammal tooth. It ended up coming loose from the matrix and I had to set it lightly on a piece of white paper as to avoid losing the minute fossil. Through closer inspection with my loupe I found that it had a morphology similar to a multituberculate tooth (cimolodon or mesodma) that I had found in South Dakota's Hell Creek during my trip. I am very pleased to have found this as there are little opportunities for me to find new fossils in November. Additionally, this may be the smallest tooth of any animal in my collection, and I'm proud I spotted it instead of overlooking it. Some perspective with a U.S. Penny (yes I know, not a valid unit of measurement, but it was the closest thing I had at that moment).
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Ornithischian vertebra - Lance Fm. Thescelosaurus? Hadrosaur?
Opabinia Blues posted a topic in Fossil ID
Hello! This is a very worn, very eroded ornithischian vertebra from the Lance Formation of Wyoming. It was in three pieces that I recently glued back together, I found all the pieces wrapped in foil together in the box I brought back from the trip. It’s from my trip there this summer, though I don’t remember collecting this specific bone. My immediate thought based on size and shape is Thescelosaurus, though I have seen some small Hadrosaur verts that look kind of like this one. I just hope it isn’t too worn/eroded that no guesses at an ID can be made! Thanks!
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Here is some of my first 6 months of fossil collection ! ( some still in transit oversea ...) First of all I really enjoy spending time in this forum and I feel very lucky to be member of this forum ! some of my collection was ID by you guys Soooo...LET get started ! KEM KEM the mystery - My First Dinosaur fossil .... Abelisauridae tooth ! MY BEST theropod tooth in my collection ! My Mystery vertebra from Kem kem ... possible Theropod vertebra Sauropod tooth << Rebbachisaurus tooth from kem kem Another Abelisauridae tooth < I personally love the color of enamel > Little Carcharodontosauridae tooth from kem kem < quite nice enamel and I love that feeding damage on the tip !!>
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Posted this a few days but I didn’t have appropriate glue on hand. Now that it’s together, it definitely seems more tubular. Maybe a very weathered limb bone?
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Here’s another bone. Thinking it’s a ceratopsian skull part, but can’t match it to anything. Thanks! Edit: Now with more bones! The overall shape is arched with central canal.
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Unknown bone from Lance Formation. Thanks in advance!
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I recently got this rather nice Edmontosaurus annectens braincase from the Lance formation. But what's interesting, it has this large hole in the top of the skull. The seller has told me that the hole is not the result of any collecting or prep damage. The seller found the piece themselves and apparently it was found upside down in the field. I've bought from this seller before and they always have high quality fossils so I'm inclined to believe the seller when they say that this hole is old damage. So then my first thought would then be, could this be a big tooth mark? Although I don't want to jump to conclusions. It's a large gash on the top of the skull. On the top there are a few pieces of bone that kinda seem like they were pushed in and on the side there are some bone fragments that seem to be kinda push out. Something pushed in from the top and then ripped out to the side maybe? I have some T.rex replica teeth and one seems to fit fairly decently. So I'm wondering, how plausible is it that this is a T. rex bite mark? We know T.rex ate Edmontosaurus of course, and we know it can crush bone. Opinions? Braincase overview. Hole closeups.
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Hi all, I’m thinking about bidding on this, and was wondering if it was a triceratops horn?
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Over twenty years of work on the Hanson Ranch Bonebed in the Lance Formation of eastern Wyoming has yielded over 13,000 individual elements primarily of the hadrosaur Edmontosaurus annectens. Findings are presented in this paper. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0233182
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I just got this bone fragment refered to as a scute from either an ankylosaur or a turtle from the lance formation. Upon further inspection,I dont see the typical ankylosaur blood vessels or the turtle carapace type features.
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Good afternoon folks. I have a very small (5mm) tooth or partial tooth on matrix from the Lance Formation outside of Newcastle, Wyoming. Is it a Theropod tooth? It's in the left middle section of the matrix.
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Late Cretaceous mammal fossils from North America
The Amateur Paleontologist posted a topic in Questions & Answers
Could someone help me find PDFs of scientific papers about mammal fossils from the Campanian-Maastrichtian of North America? I'm specifically interested in papers that deal with mammal faunas from the Hell Creek Formation, the Lance Formation and the Dinosaur Park Formation... Thanks for any help Christian -
From the album: Vertebrates (other than fish)
10x12mm. Tooth. Obtained on a trade with Strepsodus. Lance (Creek) Formation Maastrichtian Late Cretaceous Weston County, Wyoming, USA -
I purchased two bones from a seller in Wyoming about 10 years ago and cannot figure out what animal they are from. It's about 3 inches. Can anyone help? Bone #1 is pictured below:
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Real Dromeosaurid Tooth?
Zapsalis posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello, all. Sorry for my long hiatus. School and other stuff got in the way. I found a potential dromeosaurid tooth on online that the dealer says is from the Lance Formation. What do you all think?
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Hey everyone, I was digging in the Lance Formation of Wy and I came upon this odd fossil. It doesn’t look like rock to me and a few others have agreed with me. I have been researching what it might possibly be, when I came across this Forum article, My fossil looks identical to part of the cranium element above and I was wondering what you guys think it might be. Could it be a partial Cranium Element? There is a few pieces of sand a matrix covering a tiny section that makes the fossil look whitish, but it’s all brownish in coloration. Any info is appreciated. Thanks!
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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 hit it with my rock hammer and to my pleasure, there were abundant snail, bivalve and plant fossils inside this conglomerate. This little channel deposit raised my spirits, but I was still hungry for dinosaur and other vertebrate fossils. My little hunting buddy, a horned lizard. Some shots of the conglomerate containing the snails and other fossils: My best find from this conglomerate channel deposit was this nice bivalve Although I absolutely enjoy and appreciate finding invertebrate fossils, dinosaurs and other reptiles have my heart. The second half of Monday consisted of the group spending time hunting at a microsite. This spot was where I was most successful. Top Left: Worn alligator tooth Top Right: Paronychodon tooh (the first in my collection) Bottom: A piece of crocodilian osteoderm A section of Champsosaurus jaw A nice coprolite, maybe fish or small reptile A partial small theropod or bird toe bone A hadrosaur spit tooth A croc tooth still lying in the sand
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Identification of Claws/Unguals from the Hell Creek/Lance Formations
Troodon posted a topic in General Fossil Discussion
A member of the forum asked if I cam put a topic together to help identify claws from the Hell Creek/Lance formation. Its fraught with difficulty since so little has been published and described from these faunas but will attempt to put something together. All subject to discussion and mistakes. Although the focus there is with the dinosaurs of the Upper Maastrichtian its applicable to most of the other faunas of the Campanian and Lower Maastrichtian ages. Ceratopsian indet. This family of dinosaurs include Triceratops, Torosaurus and other large bodied Ceratopsaian yet to be described. Identifying unguals to a Genus/Species level is impossible and these are best identified as Ceratopsian indet. Ceratopsian unguals are best described as being rugose with many pits/holes on the front perimeter of the ungual. There is also a ledge (more pronounced on some than others) on the ventral side as shown by my red marks. I find it difficult to tell the difference between hand and foot unguals of the same size other than the wings are not has pronounced. The more symmetrical the wings are the closer the ungual is to the midline Digit III. Photos are the best way to show what they look like and here are some from my collection Dorsal view Ungual 1 Ventral View Ungual 1 Dorsal View Ungual 2 Ventral View Ungual 2 Dorsal View Ungual 3 Ventral View Ungual 3 An illustration of a Hand (Manus) A photo of a composite foot Leptoceratops indet. A small Ceratopsian in these faunas is a Leptoceratops. Teeth are the most common material found or sold but there are skeletal elements found. Here is an ungual I found in the Hell Creek. The dorsal view is like an isosceles triangle and very compressed. Dorsal View Ventral View Since these are extremely rare here is an additional photo of a associated set of unguals from the Two Medicine Formation An illustration of an campanian foot An illustration of a digit.
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