Asuncion Group

Geology

Formations: unnamed (14), Brown Mountain sandstone (1), Budden Canyon (1), Chico (3), Forbes (7), Funks (4), Guinda (1), Ragged Valley Shale (14), Redding (1), Sites (1), Waltham (2)

Lithologies: not reported (5), "siliciclastic" (4), "shale" (25), siltstone (6), sandstone (8), conglomerate (2), "limestone" (2)

Paleoenvironments: marine indet. (46), carbonate indet. (1), coastal indet. (2)

Age range: base of the Early/Lower Albian to the top of the Early/Lower Maastrichtian or 113.20000 to 66.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Albian113.2 - 110.1USA (California) (44267)
Late/Upper Cretaceous100.5 - 66.0USA (California) (225327)
Early/Lower Turonian93.9 - 89.8USA (California) (225712 225713)
Turonian93.9 - 89.8USA (California) (44240 44241)
Late/Upper Turonian - Coniacian93.9 - 85.7USA (California) (225445 225447 225448)
Coniacian89.8 - 85.7USA (California) (44214 44232 44233 44234 44235 44236 44237 44239 44269 44270 44271 86858)
Santonian85.7 - 83.6USA (California) (44238 44276 44278 44279)
Campanian83.6 - 72.2USA (California) (225015 225377 225829)
Early/Lower Campanian83.6 - 72.2USA (California) (44274 44277)
Late/Upper Campanian83.6 - 72.2USA (California) (86855 225731 215574 225372 225379 225714 225716 225717 225735)
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0USA (California) (44268 225378 225380 225732 225733)
Early/Lower Maastrichtian72.2 - 66.0USA (California) (83776 86821 86854)
Late/Upper Maastrichtian72.2 - 66.0USA (California) (72071 185190)