The Thermopolis Shale is a geologic formation which formed in west-central North America in the Albian age of the Late Cretaceous period. Surface outcroppings occur in central Canada, and the U.S. states of Montana and Wyoming. The rock formation was laid down over about 7 million years by sediment flowing into the Western Interior Seaway. The formation's boundaries and members are not well-defined by geologists, which has led to different definitions of the formation. Some geologists conclude the formation should not have a designation independent of the formations above and below it. A range of invertebrate and small and large vertebrate fossils and coprolites are found in the formation.
the ThermopolisShale, a position with which Lash agreed in 2011. Depending on the definition of the shale, and the location, the ThermopolisShale varies...
Edgarosaurus is a genus of polycotylid plesiosaur from the ThermopolisShale, containing one species, E. muddi. The type specimen was found in Early Cretaceous...
Soft tissue remains of plesiosaurs are rare, but sometimes, especially in shale deposits, they have been partly preserved, e.g. showing the outlines of...
disconformably on the Morrison Formation and is conformably overlain by the ThermopolisShale. It is subdivided into a variety of members, depending on the location...
parts of the basin filled with the Mancos Shale Most of the Bighorn Basin filled with the ThermopolisShale Appalachian Basin Foreland to the west of...
Seaway forming sandstone and the thick, organic-rich ThermopolisShale, Mowry Shale and Cody Shale, which are a major source of oil. Dryland conditions...
described by W.G. Pierce as thick, lenticular, grey sandstone, gray shale, carbonaceous shale, and bentonite. Dinosaur remains are among the fossils that have...
"Osteology of a new plesiosaur from the lower Cretaceous (Albian) ThermopolisShale of Montana" (PDF). Journal of Vertebrate Paleontology. 22 (1): 29–42...
Notes Images Edgarosaurus Gen et sp nov Valid Druckenmiller Albian ThermopolisShale United States Montana A polycotylid Type species E. muddi Kaiwhekea...
Center in Thermopolis, Wyoming, it has the best-preserved head and feet; most of the neck and the lower jaw have not been preserved. The "Thermopolis" specimen...
deposition of the rock. The Chugwater consists mainly of siltstone and shales with interspersed sandstones. While this composition will lend itself to...
strata are also exposed at this location. The Wyoming Dinosaur Center, Thermopolis Ten Sleep, including Dana Quarry from where at least 12 sauropods and...
University of Wyoming Geological Museum, Laramie Wyoming Dinosaur Center, Thermopolis, Wyoming Paleontology portal Paleontology in Colorado Paleontology in...
Carney, Tischlinger & Shawkey (2020). Evidence of feather moulting in the Thermopolis specimen of Archaeopteryx is presented by Kaye, Pittman & Wahl (2020)...
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