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Showing results for tags 'pachycephalosaur'.
Found 8 results
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Hi all, Saw this tooth and Im not really sure how to distinguish pachy and thesc premax teeth well. Looked at @Troodon’s thread though from what I can see, I think Im leaning towards my tooth as a pachy just based on morphology similarities. Tooth is from Powder River County, Montana and is 5/16th of an inch. Thanks!
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A new paper is out online, if anyone is interested: Evans DC, Brown CM, You H, Campione NE (2021). Description and revised diagnosis of Asia's first recorded pachycephalosaurid, Sinocephale bexelli gen. nov., from the Upper Cretaceous of Inner Mongolia, China. Canadian Journal of Earth Sciences. in press. doi:10.1139/cjes-2020-0190. The renaming of "Troodon" bexelli as Sinocephale is the latest instance of an old dinosaur taxon being turned into new, because despite being minimal, the holotype parietal still houses useful anatomical data to distinguish it from other pac
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For day 3, it was decided to go back to the Deers Ears butte. Everyone was sore and worn out from 2 days of hiking, so a chance to stay in a single spot and dig would be a chance to rest. My team went to the Tooth Draw quarry, the others went to other sites, including one new one. The day started pretty slow, but then mid afternoon my son uncovered a tooth (havent determined T.Rex or Nano). I was so proud of him, he did an expert job in recovery. The tip was broken insitu and could have been easily separated or lost, but he was slow, careful and judicious with the paleobond and got the to
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Pachycephalosaurid/Thescelosaurus Pes Claw Identification
DinoSharky posted a topic in General Fossil Discussion
Pachycephalosaurid/Thescelosaurus Pes Claw Identification - Troodon have you discussed this topic? -
A new article is now available online: Michelle R. Stocker; Sterling J. Nesbitt; Katharine E. Criswell; William G. Parker; Lawrence M. Witmer; Timothy B. Rowe; Ryan Ridgely; Matthew A. Brown (2016). "A Dome-Headed Stem Archosaur Exemplifies Convergence among Dinosaurs and Their Distant Relatives". Current Biology. in press. doi:10.1016/j.cub.2016.07.066. Triopticus is just another one of the many additions of the list of Triassic reptiles that are superficially similar to dinosaurs but fall outside Dinosauromorpha. This discovery brings to mind the putative Triassic pac
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Pachycephalosaur Foot Claw for Trade!
Slowpoker posted a topic in Member Fossil Trades Bulletin Board
Hello! I am placing my recently acquired Pachycephalosaur Foot claw for trade, it was found in hell creek, its an inch long. I may not trade it, but I felt compelled to see what would be offered. I'm mostly interested in: -Marine material (Plesiosaur, Ichthyosaur, ETC) -Theropod Teeth -Other Claws Will be willing to look at other offers too! I am in the UK, so mostly looking for other UK traders, but US ones welcome! Thank you! -
From the album: Dinosaur Fossils collection
Pachycephalosaur rooted tooth Locality: Hell Creek, Montana, USA Geological Age: Cretaceous (65-70 MYA) Specimen Size: 3/4" Long & 5/16" Wide -
The recent description of Acrotholus has provided me with a new insight into the early evolution of pachycephalosaurs in North America, as this is the oldest genus of domed pachie from the continent and an undescribed pachycephalosaur from the Wahweap Formation of southern Utah is also fully domed. Given that the oldest pachie, Amtocephale, is not flat-headed, does the discovery of Amtocephale and Acrotholus prove that the oldest pachies were domed and not flat-headed?
