Wreford Formation

Geology

Group: Council Grove

Members: unnamed (8), Havensville (16), Havensville Shale (40), Schroyer (12), Schroyer Limestone (18), Speiser (5), Speiser Shale (27), Threemile (18), Threemile Shale (5)

Lithologies: not reported (2), mudstone (69), "shale" (41), "mixed carbonate-siliciclastic" (1), lime mudstone (11), wackestone (2), "limestone" (68)

Paleoenvironments: marine indet. (2), terrestrial indet. (2), carbonate indet. (3), shallow subtidal indet. (5), open shallow subtidal (1), offshore ramp (28), offshore (136)

Age range: Sakmarian or 293.52000 to 290.10000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Asselian - Kungurian298.9 - 272.3USA (Kansas) (11161)
Sakmarian293.52 - 290.1USA (Kansas) (50973 50994 50996 50997 50998 50999 51000 51001 51035 51036 51037 51038 51039 51040 51041 51042 51043 51044 51045 51046 51047 51048 51049 51051 51053 51054 51055 51056 51057 51058 51059 51060 51061 51062 51063 51064 51065 51066 51067 51068 51069 51071 51072 51073 51074 51075 51076 51077 51114 51115 51116 51117 51118 51119 51120 51121 51122 51123 51124 51125 51126 51127 51128 51129 51130 51131 51132 51133 51134 51135 51136 51137 51138 51139 51140 51141 51142 51143 51144 51145 51146 51147 51148 51149 51150 88235 93781 95375 95593 106890 106891 106892 106893 106894 106895 106896 106967 106968 106969 106970 106971 106972 106973 106974 106975 106976 106977 106978 106979 106980 106981 106982 106983 106984 106985 106986 106987 106988 106989 106990 106991 106992 106993 106994 108514 108515 108516 108517 108518 108519 108520 108521 108522 108523 110317 110318 116004 116005 116594 117907 117908 117949 120236 120237 120238 120239 120240 120241 120247 130776 130778 130779 130780 130781 130782 130783 130784 130785 130786 130787 130788 130789 130810 130811 130812 130813 130814 130815 130816 130817 130818 130819 130820 130821 130822 180979)