Straight Cliffs Formation

Geology

Members: unnamed (3), Drip Tank (2), John Henry (9), Smoky Hollow (6), Tibbet Canyon (2)

Lithologies: not reported (12), claystone (3), mudstone (3), siltstone (1), sandstone (4)

Paleoenvironments: marine indet. (4), terrestrial indet. (11), marginal marine indet. (1), estuary/bay (2), wet floodplain (1), "floodplain" (1), fluvial-lacustrine indet. (1), pond (1)

Age range: base of the Coniacian to the top of the Early/Lower Campanian or 89.80000 to 70.60000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Turonian93.5 - 89.3USA (Utah) (14415 75848)
Middle Turonian93.5 - 89.3USA (Utah) (14416 181356 230870)
Middle Turonian - Late/Upper Turonian93.5 - 89.3USA (Utah) (14414 14418 230887 236738)
Middle Turonian - Early/Lower Campanian93.5 - 70.6USA (Utah) (100218 192257)
Coniacian - Santonian89.8 - 83.6USA (Utah) (14389 14393 14417 236739)
Late/Upper Coniacian89.3 - 85.8USA (Utah) (230112)
Early/Lower Santonian85.8 - 83.5USA (Utah) (181389)
Late/Upper Santonian85.8 - 83.5USA (Utah) (100217 181388 181390)
Early/Lower Campanian83.5 - 70.6USA (Utah) (230872 236740)