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The pair claim that their new rate of impact is consistent with the age of Chicxulub, providing a satisfactory explanation for its origin and other impactors like it. Understanding Chicxulub impactor is not just crucial to solving a mystery of Earth’s history but could prove pivotal if such an event were to threaten the planet again, contends Avi Loeb, Frank B. Baird Jr. Professor of Science at Harvard. Kris Snibbe/Harvard file photo Campione, N. S. E.; Evans, D. C. (2011). "Cranial Growth and Variation in Edmontosaurs (Dinosauria: Hadrosauridae): Implications for Latest Cretaceous Megaherbivore Diversity in North America". PLOS ONE. 6 (9): e25186. Bibcode: 2011PLoSO...625186C. doi: 10.1371/journal.pone.0025186. PMC 3182183. PMID 21969872.

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Scannella, J. B.; Horner, J. R. (2011). Claessens, Leon (ed.). " 'Nedoceratops': An Example of a Transitional Morphology". PLOS ONE. 6 (12): e28705. Bibcode: 2011PLoSO...628705S. doi: 10.1371/journal.pone.0028705. PMC 3241274. PMID 22194891.

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The researchers used computer modeling techniques that accounted for uncertainties including incomplete fossil records to converge on the most probable result. Thompson, S.; Holmes, R. (2007). "Forelimb stance and step cycle in Chasmosaurus irvinensis (Dinosauria: Neoceratopsia)". Palaeontologia Electronica. 10 (1): 17 p. Archived from the original on December 11, 2018 . Retrieved November 20, 2010. a b c d e f g h i Weishampel, D.B.; Dodson, Peter; Osmólska, H. (2004). The Dinosauria (Seconded.). Berkeley: University of California Press. p.861. ISBN 978-0-520-24209-8.

Were dinosaurs doomed before the asteroid hit? - BBC Future Were dinosaurs doomed before the asteroid hit? - BBC Future

Can collect berries, thatch, and smaller amounts of wood; collecting berries in this manner will yield extremely high amounts of berries compared to collecting them by hand. This makes it incredibly useful for feeding and taming other herbivores. This relates to the fact that in the dossier, Helena mentions that the creature has the 3 horns like a Triceratops but the horns around the edge of the frill like a Styracosaurus, hence its scientific name, Triceratops styrax. The dig has been filmed for a BBC documentary Dinosaurs: The Final Day with Sir David Attenborough; during which the broadcaster will review the fossil finds. “When Sir David looked at ‘[the leg], he smiled and said ‘that is an impossible fossil’. And I agreed,” Manning said. Cope, E.D. (1872). "On the existence of Dinosauria in the Transition Beds of Wyoming". Proceedings of the American Philosophical Society. 12: 481–483.

Scannella, J. B.; Fowler, D. W. (2009). "Anagenesis in Triceratops: evidence from a newly resolved stratigraphic framework for the Hell Creek Formation". 9th North American Paleontological Convention Abstracts. Cincinnati Museum Center Scientific Contributions 3. pp.148–149.

Triceratops | ARK: Survival Evolved - Dododex Triceratops | ARK: Survival Evolved - Dododex

Opinion has varied on the validity of a separate genus for Nedoceratops. Scannella and Horner regarded it as an intermediate growth stage between Triceratops and Torosaurus. [29] [91] Farke, in his 2011 redescription of the only known skull, concluded that it was an aged individual of its own valid taxon, Nedoceratops hatcheri. [88] Longrich and Fields also did not consider it a transition between Torosaurus and Triceratops, suggesting that the frill holes were pathological. [90]Farlow, J. O.; Dodson, P. (1975). "The behavioral significance of frill and horn morphology in ceratopsian dinosaurs". Evolution. 29 (2): 353–361. doi: 10.2307/2407222. JSTOR 2407222. PMID 28555861. Marsh, O.C. (1889a). "Notice of new American Dinosauria". American Journal of Science. 37 (220): 331–336. Bibcode: 1889AmJS...37..331M. doi: 10.2475/ajs.s3-37.220.331. S2CID 131729220. Archived from the original on September 29, 2018 . Retrieved October 19, 2021. The enduring puzzle has always been where the asteroid or comet originated, and how it came to strike the Earth. And now a pair of Harvard researchers believe they have the answer. What is special about the Triceratops?". Dinosaurios.org. July 24, 2013. Archived from the original on May 31, 2020 . Retrieved December 26, 2013. a b Archibald, J. D.; Zhang, Y.; Harper, T.; Cifelli, R. L. (2011). "Protungulatum, Confirmed Cretaceous Occurrence of an Otherwise Paleocene Eutherian (Placental?) Mammal". Journal of Mammalian Evolution. 18 (3): 153–161. doi: 10.1007/s10914-011-9162-1. S2CID 16724836.