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Are these coprolites or simply nodules/concretions? I have zero knowledge on how to distinguish a coprolite, other than that these materials have a distinct, smooth shape that I could certainly envision reptilian poop looking like. But so do concretions oftentimes. These come from the Bladen/Tar Heel formations of North Carolina from an area known to preserve coprolites. Btw I read the coprolite ID thread and these appear to meet some of the criteria, although they’re not porous enough for the “lick” test, and I haven’t had a chance to view them under a microscope yet.
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Hi all, last week I found a tooth that I’m pretty sure is crocodilian, I believe it might be from Deinosuchus rugosus, any thoughts? The tooth is from NC Tar Heel formation sediments. Btw it has two carina. Also, I have a bone fragment I found from the same location, I believe it’s from the skull or possibly the rib of a mosasaur or crocodile, or I guess possibly a large turtle. Is there any way to identify it further? Organisms can have different bone morphology at the histological level, wanted to see if anyone could narrow the bone down to coming from a turtle, crocodile, or mosasaur based on the bone structure. Although it may not be possible just by looking at the pics. Thanks!
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North Carolina Ammonites, Mosasaurs, Sharks, and More!
fossil_lover_2277 posted a topic in Fossil Hunting Trips
I recently went on two fossil hunting trips to Cretaceous sediments of Eastern North Carolina, the second of which was earlier today. Today’s trip to the Bladen formation yielded baculites ammonites, some worn mosasaur teeth, the nicest goblin shark teeth I’ve personally collected, some fish mouth plates, turtle shell fragments, and some other goodies. My first trip a couple weeks ago was to Tar Heel formation sediments and I collected several small mosasaur teeth, a mosasaur vertebra, a piece of petrified lignite, lots of goblin and crow shark teeth, lots of turtle shell, a very worn Deinosuchus tooth, and some coprolites (I’ve posted a few of the images from this trip in the ID section of the forum already). North Carolina is an amazing U.S. state for fossils, it has loads of fossils from the Paleozoic, Mesozoic, and Cenozoic (although if you want Jurassic look elsewhere). If you haven’t already, you should come check it out! Pics from today’s trip: Pics from the first trip:- 23 replies
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Petrified lignite, Tar Heel formation, North Carolina, U.S.A.
fossil_lover_2277 posted a gallery image in Member Collections
From the album: Lando’s Fossil Collection
Petrified lignite collected from the Cretaceous Tar Heel formation of the Cape Fear River, NC.© Lando_Cal_4tw
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Hi all! So I recently posted regarding a bone ID on a mystery mosasaur/dinosaur vertebra (I’m leaning towards it being a mosasaur vert.). The vert. came out of either the Cretaceous Bladen or Tar Heel formations of North Carolina from a marine site that yields dinosaurs, crocs, mosasaurs, turtles, and fish (including sharks). Well, I went back through the material I had collected (from the same site as the vert.) and found what I believe are a worn tooth and a fragment of what I believe to be the proximal end of a femur (although I could very well be wrong on that). The tooth I would have thought to be croc or mosasaur, but it is not conical (it’s more “chisel”-like), and I haven’t seen anything quite like it. The “femur”, as far as I can tell from looking up images...appears to be dinosaurian, but I’m not sure. Any help would be greatly appreciated as my knowledge of zoological anatomy is limited **Update: I checked the “femur” under a microscope, I don’t see any bone histology, I think it’s just a concretion of some sort. Wasn’t sure because so many of the bones from this site are worn down. But of course the tooth is definitely a tooth. No idea on the ID still.
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- black creek group
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Mosasaur/dinosaur vertebra with mosasaur/crocodile teeth, Tar Heel formation, North Carolina, U.S.A., 2021
fossil_lover_2277 posted a gallery image in Member Collections
From the album: Lando’s Fossil Collection
Collected from the Cretaceous Tar Heel formation of eastern NC. Teeth are either crocodilian or mosasaurian, and vertebra is either dinosaurian or mosasaurian.© Lando_Cal_4tw
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North Carolina Dinosaur or Mosasaur Vertebra or phalanges?
fossil_lover_2277 posted a topic in Fossil ID
Hi, I recently found a bone that looks like either a vertebra or a phalanges. The bone is from eastern North Carolina, legally collected from public land, and comes out of either the Cretaceous Tar Heel or Bladen formations. Both marine and freshwater organisms as well as dinosaurs are known to be found from the general area. The bone does not look like it comes from a turtle or crocodile, but I could be wrong. Is it a dinosaur or mosasaur bone, or something else? And no, there is no way this bone is Cenozoic. Thanks!- 8 replies
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What is the True Identity of the Phoebus Landing Tyrannosauroids?
AlexSciChannel posted a topic in General Fossil Discussion
What is the most likely attributable identity for the Tyrannosauroid remains at Phoebus Landing of the Tar Heel Formation? What I am referring to specifically are bones documented in Baird and Horner's 1979 paper which speaks of a distal third of a right femur that is attributed to cf. Dryptosaurus and is smaller than the holotype of D. aquilunguis. It is also compared with Albertosaurus which shows similarities as well but that's expected with Eutyrannosaurs. Also there is another distal left femur of a tyrannosauroid shown to be found in a Hypsibema bonebed and originally attributed to the Hadrosaur taxon as a tibia but later revealed to be part of the femur of Tyrannosauroide Keep in mind at the time they were attributed to tyrannosauridae until dryptosaurus was shown to be part of an outgroup from the main family. My only question is, are these specimens possibly referrable to Appalachiosaurus instead of Dryptosaurus? It could be possible as the time of description of these specimens Appachiosaurus was not described yet. There are a few flags that could make such bones the cf. Appalachiosaurus instead, like the more pronounced medial condyle than that of Dryptosaurus which is smaller and less noticeable. This I noticed with specimen ANSP 15330. Although it is overrall smaller than the Dryptosaurus holotype this could be just a sign of it being in a juvenile ontogenetic stage. And despite being smaller not only is it's medial condyle larger, the politeal pit and the intercondylar fossa are deeper and more prominent. Although I cannot say the same for the larger left femur Cope mistakenly thought was a Hypibema tibia. This femur is larger than the Dryptosaurus holotype however it's fossa and processes aren't as pronounced. Although this could be attributed to the fact it is largely abraded and weathered. Here is the subadult Appalachiosaurus right femur from the holotype (ignore the left tibia included below it);- 3 replies
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- appalachiosaurus
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Here are a couple of dinosaur teeth (tyrannosauroid and hadrosaurid) from Bladen County, North Carolina.
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- appalachiosaurus
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Always like to see discoveries of dinosaur material from the east coast especially from North Carolina. Here, the first definitive occurrence of a dromaeosaurid from the Tar Heel Formation is reported on the basis of a tooth from a fairly large member of that group. The tooth described in the paper is intermediate in size between those of smaller dromaeosaurids like Saurornitholestes and gigantic forms like Dakotaraptor. https://www.paleowire.com/just-out-a-giant-dromaeosaurid-from-north-carolina-cretaceous-research/ Paywalled paper https://www.sciencedirect.com/science/article/pii/S0195667118301253
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