Mooreville Chalk Formation

Geology

Group: Selma

Members: unnamed (64), Arcola Limestone (2), Lower (1), unnamed (1)

Lithologies: not reported (10), claystone (2), marl (4), chalk (31), grainstone (1), "limestone" (17), "carbonate" (4)

Paleoenvironments: marine indet. (26), terrestrial indet. (3), carbonate indet. (31), deep subtidal shelf (2), offshore shelf (2), marginal marine indet. (1), offshore (1)

Age range: Campanian or 83.60000 to 72.10000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Santonian - Early/Lower Campanian86.3 - 70.6USA (Alabama) (190359 190360)
Late/Upper Santonian85.8 - 83.5USA (Alabama) (181177)
Late/Upper Santonian - Early/Lower Campanian85.8 - 70.6USA (Alabama) (81930 81931 81932 81933 81934 81935 82043 82044 82047 82049 82051 82052 82053 82054 82055 84188 220761 227020)
Campanian83.6 - 72.1USA (Alabama) (3585)
Early/Lower Campanian83.5 - 70.6USA (Mississippi) (210609)
Early/Lower Campanian83.5 - 70.6USA (Alabama) (3588 52053 52054 52055 53151 82035 82635 171351 171352 172589 172617 181623 181624 191172 192770 197308 197309 197310 197311 197312 197313 197314 197315 197316 231048 203110 203111 210612 210613 210614 210615 210616 210621 228877 228878 231049 231050 231051 232232)
Early/Lower Campanian - Middle Campanian83.5 - 70.6USA (Arkansas) (189417)
Early/Lower Campanian - Middle Campanian83.5 - 70.6USA (Alabama) (80890 128414 129836)
Middle Campanian83.5 - 70.6USA (Alabama) (78185 97636)