Guinea Corn Formation

Geology

Members: unnamed (161), A Beds (1), B3 Beds (1), D Beds (1), LC1 Beds (1), Yankee River (1)

Lithologies: mudstone (14), "shale" (18), siltstone (28), sandstone (1), marl (5), lime mudstone (5), floatstone (4), rudstone (11), "limestone" (104), "carbonate" (1), "volcaniclastic" (1)

Paleoenvironments: marine indet. (80), carbonate indet. (3), shallow subtidal indet. (76), open shallow subtidal (3), reef, buildup or bioherm (4)

Age range: Early/Lower Maastrichtian or 72.20000 to 66.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian - Maastrichtian83.6 - 66.0Jamaica (73169)
Early/Lower Maastrichtian72.2 - 66.0Jamaica (66290 66291 66292 66293 66294 66295 66296 66297 66298 66299 66300 66301 66302 66303 66304 66305 66439 66442 66445 66447 66451 66453 66456 66458 66459)
Late/Upper Maastrichtian72.2 - 66.0Jamaica (27649)
Late/Upper Maastrichtian72.2 - 66.0Jamaica (Clarendon) (47116 47117 47118 162929 47119 47120 47121 93562 162930 162931 162932 162933 162934 162935 162936 162937 162938 162939 162940 162941 162942 162943 162944 162947 162948 162949 162950 162951 162952 162953 162954 162955 162956 162957 162958 162959 162960 162961 162963 162964 162965 162966 162967 162969 162970 162971 162972 162973 162974 162975 162976 162977 162978 162979 162980 162981 162982 162983 162984 162985 162986 162987 162989 162990 162991)
Late/Upper Maastrichtian - Early/Lower Maastrichtian72.2 - 66.0Jamaica (169303)
Maastrichtian72.2 - 66.0Jamaica (154378 211439 213579)
Maastrichtian72.2 - 66.0Jamaica (Clarendon Parish) (163005 163006 163007 163008 163009 163010 163011 163012 163013 163014 163027 163028 163029 163030 163056 163057 163058 163059 163060 163061 163078 163079 163080)
Maastrichtian72.2 - 66.0Jamaica (Clarendon) (84790 84791 84792 161321 161322 161323 161324 161326 161328 161329 161330 161331 161332 161333 161334 161335 161336 161339 161340 161341 161342 161343 161344 161345 161346 161347 161348 161349 161350 161351 161352 161353 161354 161356 161357 161358 161359 161360 161361 161362 161363 161364 161365 161366 161367 161368 161369 161370)