SEDIS - Thesaurus
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Morrison Formation
BT
Chronostratigraphic Units
.
Phanerozoic
..
Mesozoic
...
Jurassic
....
Upper Jurassic
.....
Morrison Formation
RT
New Mexico
Utah
Wyoming
Montana
Oklahoma
Colorado
Kansas
Arizona
South Dakota
Brushy Basin Shale Member
Salt Wash Sandstone Member
Westwater Canyon Sandstone Member
SN
In Plata Mountains of Colorado, comprises (ascending) Pony Express Limestone, Bilk Creek Sandstone, Wanakah Marl (restricted), and Junction Creek Sandstone.
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