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Showing results for tags 'appalachiosaurus'.
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Howdy all, Does anyone know what this appalachiosaurus skull reconstruction is based on? I've seen it and another that looks more like a Dryptosaurus and I'm not sure which is the correct one based on the holotype.
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- appalachiosaurus
- appalachiosaurus montgomeriensis
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Howdy all, Anyone willing to trade me an Appalachiosaurus, or any black creek theropod tooth? Been dying to get one.
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- appalachiosaurus
- appalachiosaurus montgomeriensis
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Howdy all. I've discussed the relationships between Nanotyrannus and Appalachiosaurus to albertosaurines and to eachother before, and today I'm wondering if relationships could be determined by the shape of their teeth. Comparing the teeth of nanotyrannus and appalachiosaurus, they are very similar to eachother, almost identical. They are also relatively similar to the teeth of gorgosaurus, though not as much. I believe it's already been established that these animals are relatively closely related, but I think this to be extra evidence to the case. (These fossils are not mine)
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- appalachiosaurus
- cretaceous
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I recently read that the only skeleton currently known of Appalachiosaurus was of a juvenile, and the adult animal was significantly bigger. The juvenile skeleton was about 21 feet long, and the animal likely weighed 1,300 pounds. This skeleton is about the size of a juvenile Tyrannosaurus rex (using the "Jane" specimen for scale, BMRP 2002.4.1) and, this raises a question in my mind. Is it possible that Appalachiosaurus montgomeriensis would have attained adult sizes close to what we see in adult specimens of Tyrannosaurus rex? And as such, could we classify it as a megatheropod? Of course there are several other factors in this, such as age, growth stages, and environmental pressure that the animal may have experienced in life.
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- appalachia
- appalachiosaurus
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Is this an Appalathiosaur tooth? Bladen County, North Carolina, black creek group If anyone knows, please let me know.Thank you in advance.
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- appalachiosaurus
- black creek group
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North Carolina tyrannosaur tooth..Dryptosaurus maybe?
fossil_lover_2277 posted a topic in Fossil Hunting Trips
Tyrannosaur tooth I found in North Carolina's Black Creek group yesterday afternoon. Based on the serration count, I'm thinking it's Dryptosaurus, the line of serrations in the second pic is 1.58cm long (measuring by hand), and I counted 31..I do plan to check them for certain later with a stereoscope, but my understanding is Dryptosaurus has <11 serrations/0.5cm and Appalachiosaurus >11/0.5cm. If anyone who deals with this regularly wants to help with the ID, please feel free.- 16 replies
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- appalachiosaurus
- black creek group
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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
- black creek group
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Here are a couple of dinosaur teeth (tyrannosauroid and hadrosaurid) from Bladen County, North Carolina.
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- appalachiosaurus
- cretaceous
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