Formations: unnamed (12), Cedar Mountain (97), Mesa Rica Sandstone (7), Muddy Sandstone (19), Pajarito (13), Plainview (2), South Platte (1)

Members: unnamed (81), Janssen Clay (2), Nishnabotna (4), Terra Cotta Clay (2), upper sandstone (18)

Lithologies: not reported (50), "siliciclastic" (2), claystone (12), mudstone (48), "shale" (19), siltstone (7), sandstone (100), gravel (4), conglomerate (1), "limestone" (5), chert (5), coal (1)

Paleoenvironments: marine indet. (9), terrestrial indet. (88), shallow subtidal indet. (1), offshore indet. (10), basinal (siliceous) (12), marginal marine indet. (2), coastal indet. (11), estuary/bay (18), delta plain (13), shoreface (1), fluvial indet. (8), channel lag (1), coarse channel fill (2), "channel" (2), "floodplain" (5), crevasse splay (9), levee (4), mire/swamp (3), fluvial-lacustrine indet. (4), fluvial-deltaic indet. (1), lacustrine - small (1), pond (1), lacustrine delta plain (1), lacustrine indet. (8), spring (1)