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  2. Morrison Formation - Wikipedia

    en.wikipedia.org/wiki/Morrison_Formation

    The Morrison Formation is subdivided into several members, the occurrence of which are varied across the geographic extent of the Morrison. Members are (in alphabetical order): [ 7 ] [ 8 ] Bluff Sandstone Member (AZ, CO, NM, UT): Well-sorted, light brown to white sandstone with large grains and components of chert.

  3. List of dinosaurs of the Morrison Formation - Wikipedia

    en.wikipedia.org/wiki/List_of_dinosaurs_of_the...

    The Morrison Formation is a distinctive sequence of Upper Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish gray, or red.

  4. Carnegie Quarry - Wikipedia

    en.wikipedia.org/wiki/Carnegie_Quarry

    Carnegie Quarry is located in the Brushy Basin Member of the Morrison Formation. The site has been dated to between 150.91 and 150.04 million years ago. [5] The quarry is located in a sandstone bed known as the Quarry Sandstone. The Quarry Sandstone is unusual for the upper Morrison Formation in being relatively coarse-grained. [6]

  5. Paleobiota of the Morrison Formation - Wikipedia

    en.wikipedia.org/wiki/Paleobiota_of_the_Morrison...

    The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has a wide assortment of taxa represented in its fossil record, including dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light

  6. Dinosaur Ridge - Wikipedia

    en.wikipedia.org/wiki/Dinosaur_Ridge

    Geologic Overview - including a look west to the 300 mya Fountain Formation, in which Red Rocks Amphitheatre is located. Dinosaur Bulges Guide describing the "bulges" - a track exhibit at Dinosaur Ridge, in the Golden-Morrison Fossil Areas National Natural Landmark, Colorado. The bulges are natural casts - the "undersides" of footprints.

  7. Front Range - Wikipedia

    en.wikipedia.org/wiki/Front_Range

    After 100 million years of deposition, a new environment brought rise to a new formation, the sandstone Morrison Formation. The Morrison Formation contains some of the best fossils of the Late Jurassic. It is especially known for its sauropod tracks and sauropod bones, among other dinosaur fossils.

  8. San Rafael Group - Wikipedia

    en.wikipedia.org/wiki/San_Rafael_Group

    The group consists of Jurassic beds younger than the Navajo Sandstone and older than the Morrison Formation.These show marine influence in their formation in the northwestern exposures at San Rafael Swell, with formations composed of limestone, mudstone, gypsum, and silty sandstone.

  9. Dry Mesa Quarry - Wikipedia

    en.wikipedia.org/wiki/Dry_Mesa_Quarry

    This fossil assemblage was deposited within a poorly sorted sandstone bed that is stratigraphically situated in the lower portion of the upper Brushy Basin Member of the Morrison Formation. The bone accumulation, consisting of thousands of bones, was the consequence of two cataclysmic events, a drought, and flash flood.