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Gorgosaurus sp. (libratus?) partial femur (Lambe, 1914) Tyrannosaurid theropod Family: Tyrannosauridae Subfamily: Albertosaurinae Genus: Gorgosaurus (Lambe, 1914) Labelled as being a partial femur (thigh, upper leg). Late Cretaceous (Campanian), 75.1 – 76.6 Ma Red Deer River Valley, Nr. Drumheller, Alberta, Canada. Unboxing my old collection that has been in storage for years and forgot that I had this (purchased August 1988) – labelled as being a Gorgosaurus sp.partial femur. I am assuming that the groove was for a tendon or blood vessel? It appears that fossilised / mineralised spongiform material is visible in the cross-section at one end – might this be fossilised / mineralised bone marrow or spongy (cancellous) bone? Areas of mineralised bone surface also appears to be present. Research suggests that it is likely from the Dinosaur Park Formation which is especially prolific in dinosaur remains and well exposed in the badlands which flank the Red Deer River.
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A Wealth of Trace Fossils from Saskatoon, Saskatchewan!
Pseudogygites posted a topic in Fossil Hunting Trips
Another day of great finds in Saskatoon! This time, some trace fossils. With my wonderful collaboration with the University of Saskatchewan's Museum of Natural Sciences still continuing, recently I have been very lucky to make multiple trips out to a beautiful site just outside the city of Saskatoon where massive deposits of glacial lake silt are exposed. This silt produces pristine grass and other plant fossils in abundance (I'd like to make a post about them soon as well), but also seems to be teeming with various invertebrate trace fossils. All are very small (under 1 centimetre wide). I've attached some of my best pictures below. 1 - 6: Overlapping Planolites sp. closeups 7 - 11: Edaphichnium sp. 12 - 14: Taenidium sp. closeups 15 - 16: Taenidium sp. wide shots 17: Taenidium sp. closeup -
Good evening! I found this fossil on the Eastern ocean coast of Canada while walking on the beach and I was hoping to find out what it could be. Measures about 3L x 2H x 1W in inches. Time period unknown. Let me know if you need more information! Thank you.
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Look I found a thing! Usually when I see a rock embedded in another rock I think fossil... however IF this is a fossil I have no idea what it would be. So at this point im thinking maybe its another Xenolith. What are your thoughts? For anyone interested, this was found near Vancouver Canadia.
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Hi, I am still new at identifying brachiopods, I know there is a great diversity of similar species, which makes it even more difficult for me. Can you help me identify these two brachiopods, they both feature a semicircular outline, concavo-convex profile, and small size (~1.0 cm wide). They also have a wide, straight hinge numerous and very fine lines and ribs. Not sure if they are the same species, one of them has a larger size with a bit smaller width compared to length. So I don't think they are the same species. The plate was found in the Nicolet River Formation south of Montreal, QC Any help would be appreciated, thanks !
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Possible Cretaceous Osteoderms Found In Central Alberta Badlands. Please Help ID
Backcountryhiker posted a topic in Fossil ID
While hiking in the Central Alberta Badlands Near Toleman in Red Deer River Valley came across two pieces of fossilized matter that looked very different than most of the bone fragments I have encountered while on similar outings. If I was to take a wild & uneducated guess I would say they look like they could be osteoderms? Any help to ID these strange pieces would be greatly appreciated. Thank you In advance.- 2 replies
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Finally I can share an incredible piece with you all!!!!!!!! I have been very fortunate to be able to do invertebrate fossil preparation for The Royal Ontario Museum (The ROM). I have recently been given permission to share pictures of some of the work that I have done for them. Thank you Dr. J.B. Caron. In the coming weeks I will share some pictures of other pieces I did for them. In total I prepared about 12 pieces for them out of their collection and I donated 7 pieces for the new gallery. In case you are not already aware they will be opening a major new fossil gallery "The Dawn of Life" later this year. Here is a major piece that I did for them last year. The piece is quite stunning in person , my photography does it no justice. You will be able to see it in person in the new gallery. There are over 60 Leviceraurus mammilloides on the plate. As well as a few other species of crinoid and trilobite. To spare you all the waiting here is the finished piece The piece was prepared over a 12 month period and required around 200 hours to prepare. It was prepared under a Olympus zoom microscope using the following air scribes (CP9361, ARO, Pferd MST-31, Paleotools Microjac 2) The air abrasion was performed with a Comco MB1000 using baking soda and dolomite in the 40 micron range and mostly 20 to 30 PSI. Since this was a piece of scientific importance (there may be a new species on here and it potentially shows some sexual dimorphism ) all associations were left on the plate. If a brachiopod was covering a trilobite it was not removed. Partial trilos were not removed to exposed complete ones below it. Dr. Caron was quite specific in what he wanted in the way the specimen was prepared. There are probably more trilos that have not been exposed and these may be discovered in the future by Xray. At 200 hours I quit searching for more as the plate had nice aesthetics and the museum needed it to do professional photography and measuring for the display. This picture is as it was found in the field back in 2019 by David A. who is a member here on the fossil forum. The fossil was found in an Ordovician quarry (St. Mary's Cement) that allows a very limited number of qualified collectors in a few times per year. The slab as found required 4 people to bring it down the side of a very large blast pile using a blanket. It was estimated that the slab weighed about 300 pounds. Here I am u The 2nd and 3rd pictures are me cutting and thinning the slab using a checkerboard technique done with a diamond rock saw. This got the piece to a transport weight of about 60 pounds. The rest of the pictures are a sequence leading up to the finished piece which weighs about 50 pounds and was the first picture shown in this post. If you have any questions please feel free to ask or send me a private message if you prefer. The piece in my basement before any preparation. Not so pretty at this point in its life.... The piece at 1 hour The final shot here was with about 20 hours to go
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Help ID Please. Cretaceous Bone With Big Hole Through It. Found in Alberta Badlands Near Red Deer River.
Backcountryhiker posted a topic in Fossil ID
Hello Everyone I recently came across three interesting bone fragments while hiking near the Red Deer River North of Drumheller ( Alberta, Canada). The one bone fragment has a perfectly round symmetrical hole right through it, & the second & third fragment appears to have little pock marks or indentations on it (reminds me a bit of the whisker pocks a dog has on its face) . Anyways I am just a hobbyist however the fragments with the pocked marks I'm going to guess is part of the jaw or maybe somewhere near the mouth? Any help to help ID or any additional information of any kind would be greatly appreciated. Thank you all in advance! Have great weekend. -
Fossilized bone found with what looks to be predation marks. Help Id please. Thanks
Backcountryhiker posted a topic in Fossil ID
Hello everyone, while I was getting some exercise exploring the badlands here in central Alberta (Red Deer river valley Scollard formation I believe) I found a piece of fossilized bone that must have been recently exposed due to spring thaw. I am no guru however it appears to have some predation marks on it (third picture left side) & to me looks like it could be a leg bone? I'm looking for some help confirm these are in fact predation marks & also to ID the bone itself if possible. I know its difficult due to it being just a small fragment but any help or additional info would be greatly appreciated. The fossil measures approximately 9cm in length by 4.5cm at the fat end & roughly 3cm at the thin end. Hope that helps. Thank you in advance for the help!