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↑ (2020). "Morphology and osteohistology of a large-bodied caenagnathid (Theropoda, Oviraptorosauria) from the Hell Creek Formation (Montana): implications for size-based classifications and growth reconstruction in theropods". Papers in Paleontology7 (2): 751−767. DOI:10.1002/spp2.1302.
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Edmontonia excluded from the diagram, as suggested by Shuvuuia and Slate Weasel, dubious or absent presence in the fauna. Quetzalcoatlus reduced to 5 meters (specimen BMR P2002.2) and classified as indeterminate species. ''Mosasaurus'' changed to ''Mosasaur'' and classified as indeterminate genera, due to have very fragmentary remains.