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Geology
2
Stratigraphy
General Medicine
1
Montana stratigraphic record of the Precambrian-Cambrian transition
1
Paleontology
1
Sedimentology
1
Tectonics and Structure
1
Treptichnus Pedum trace-fossil
1
southwestern Montana Late Neoproterozoic to Early Cambrian stratigraphy
1
the Humbolt anticline
1
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