Marshall County Sec 28, T. 2 S, R. 7 E.

Ninth and Carolina Streets, Marysville (Section estimated) Measured by M.K. Elias, 1932 Remarks: IV-11

Unit No. Description Thickness ft.   Florence limestone foramtion   20 Limestone, shaly, with two flint bands 2 19 Limestone, massive, with four flint bands 4 18 Limestone, massive, with three flint bands widely spaced and three flint bands close together. Fusulinids in the second and third of the upper three bands. Composita small and round below fusulinid zone. 4.5 17 Shale, limy, very fossiliferous: Choneted, Derbya, Dictyoclostus americanus bryozoa .8 16 Limestone, very fossiliferous 1 15 Limestone, solid, with flint band int he middle, very fossiliferous: crinoid joints, bryozoa and others, Dictyoclostus americanus at the base 1 14 Limestone, shaly, fossiliferous .2 13 Mudstone, massive, blue-gray, with Allorisma. At the base Dictyoclostus, Juresania, slightly above the base, Allorisma, Schizodus 1 12 Shale, blue-green 2.5 11 Shale, dark-green 1 10 Shale, light-green .5 9 Shale, brick-red .5 8 Shale, green 3 7 Shale, maroon 6 Shale, green 5 Shale, brick-red 1.5 4 Shale, calcareous, light-green .6 3 Shale, brick-red 1.8 2 Shale, dark-green .6 1 Shale, brick-red, calcareous 2

East end of Marysville on Highway 36, SW corner of sec 28. Measured by M.K. Elias, 1932 Remarks: IV-13

Unit No. Description Thickness ft.   Holmesville shale foramtion   25 Shale, greenish, with vertical bands of maroon 2 24 Shale, greenish to yellow-brown 2 23 Mudstone to box-work, very calcareous, rusty, brownish-yellow 4 22 Shale, calcareous, light-gray 2 21 Mudstone, light-gray, soft 1 20 Shale, calcareous, light-gray 2 19 Mudstone, light-gray, soft 1 18 Shale, calcareous, light-gray 2.5 17 Mudstone, soft, splittery, light-gray 1.5 16 Shale, calcareous, light-gray 0.5 15 Mudstone, soft, light-gray 0.7 14 Shale, calcareous, light-gray 0.8 13 Mudstone, light-gray 0.7 12 Shale, light-gray 0.1 11 Mudstone, light-gray 0.5 10 Shale, light-gray 0.1 9 Mudstone, with a flint band, very fossiliferous with pelecypods and Bellerophon 0.8 8 Shale, light-gray 0.5 7 Mudstone, soft 0.6 6 Shale, calcareous 0.8 5 Mudstone, soft 1.2 4 Shale, calcareous 1.5 3 Mudstone, soft 1.5   Fort Riley limestone member   2 Mudstone, massive, with large caverns 5 1 Shale, gray, with small Derbya, bryoza, Dictyocolustus americanus and other fossils 3