Category

Mudstone formations of the United States

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Hell Creek Formation

geological formation

Morrison Formation

Green River Formation

Judith River Formation

geological formation in Canada

Cloverly Formation

geological formation

Kirtland Formation

geological formation in New Mexico and Colorado, United States

Chinle Formation

geologic formation

Prince Creek Formation

geological formation

Cedar Mountain Formation

geological formation in the western United States

Kaiparowits Formation

geological formation in the United States

Laramie Formation

geological formation in the United States of America

Sânpetru Formation

geological formation in Romania

Arundel Formation

geological formation in Maryland

Javelina Formation

geological formation in the United States of America