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Morrison Formation dinosaur bone collecting

View on map:40.672967°N 105.189257°W

Comments

EchoHawk and Kackstaetter (2016) state: "This outcrop {of the Morrison Formation] contains multi-colored blocky-weathering claystone and siltstone, lenses of gray micritic limestone, and fine- to medium-grained sandstone with dinosaur npme fragments".  Stop 8 o f EchoHawk and Kackstaetter

Description


Morrison Formation

The Morrison Formation is a distinctive sequence of Upper Jurassic sedimentary rock 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 gray, greenish gray, or red. Most of the fossils occur in the green siltstone beds and lower sandstones, relics of the rivers and floodplains of the Jurassic period.

References

  • http://en.wikipedia.org/wiki/Morrison Formation
  • Page 259 - EchoHawk, B. and Kackstaetter, U., 2016, Roadside faults, folds, fossils, crystals, and diamond pipes - Sampling the geologic diversity of northern Colorado: Geol. Soc. Am. Field Guide 44, p. 247-266.
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