WebJan 1, 2015 · (A, UAMES 33308) from the early Maastrichtian Prince Creek Formation, right postorbital in medial (A 1 ) and anterior (A 2 ) views; size class 2 Edmontosaurus annectens Marsh, 1982 (B, ROM 53513 ... WebPrince Creek Formation. lower Tertiary, Paleocene, to Upper Cretaceous, Campanian (83.6 to 56 Ma) Consists of light colored nonmarine sandstone interbedded with carbonaceous mudstone, coal, and bentonite (Mull and others, 2003). Sandstone is dominantly very fine- to fine-grained and variably tuffaceous and contains grains primarily of quartz ...
Ron Tykoski - Vice President of Science & Curator of Vertebrate ...
WebFeb 1, 2015 · In the Prince Creek Formation, smectitic parent materials were deposited by epiclastic volcanic ash-rich alluvium that accumulated on imperfectly drained floodplains. Diagenetic transformation of smectite to illite is unlikely in the Prince Creek Formation, in as much as maximum burial temperatures never exceeded ∼ 48° C. WebPrince Creek Formation. lower Tertiary, Paleocene, to Upper Cretaceous, Campanian (83.6 to 56 Ma) Consists of light colored nonmarine sandstone interbedded with carbonaceous mudstone, coal, and bentonite (Mull and others, 2003). Sandstone is dominantly very fine- to fine-grained and variably tuffaceous and contains grains primarily of quartz ... sketch of jesus laughing
Duck-billed Dinosaurs (Hadrosauridae), Ancient Environments, and …
WebThe Prince Creek Formation aged from 80 to 61.7 million years ago. The Kikak-Tegoseak Quarry, where almost all of the dinosaur fossil are from, is located near the middle of the formation, and is about 70.6 to 69.1 million years ago. A lower section, the Kogosukruk Tongue, ages from 72 to 71 million years ago, in the latest Campanian. WebNanuqsaurus (meaning "polar bear lizard") is a genus of carnivorous tyrannosaurid theropod known from the Late Cretaceous period (early Late Maastrichtian stage) Prince Creek Formation of the North Slope of Alaska, United States, having lived roughly 70-68 million years ago.It contains a single species, Nanuqsaurus hoglundi, known only from a partial … WebMar 12, 2014 · The Prince Creek Formation is an alluvial unit comprised of sediments shed northward from the rising Brooks Range during late Campanian to Paleocene time , . Radioisotopic dates derived from multiple tuff beds throughout this section of the Prince Creek Formation range from 68Ma to 71Ma, with an average estimate of 69.1+/−0.3Ma, … sw0pc-fxgp/win-c