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| Unit No. | Description | Thickness |  
| 1 | Limestone, hard, dense, robust fusulinids (not quite to top), brachiopod fragments, Syringopora Dioherm, Osagia, and Marksia? | 2.8 ft. |  
| 2 | Shale, greenish to gray | 1.5 ft. |  
| 3 | Limestone, flaky, Osagia?, fine shells | 0.2 - 0.3 ft. |  
| 4 | Shale, greenish gray | 0.4 ft. |  
| 5 | Limestone, hard, vertically jointed, light gray, gastropods, crinoid stems, fusulinids (sparse), brachiopods, and Marksia | 1.2 ft. |  
| 6 | Shale, covered | 2.2 ft. |  
| 7 | Limestone, orange, marly, brown calcite veinlets | 0.4 ft. |  
| 8 | Shale, light tan to olive gray, Chonetes, Marginifera, crinoid stems, unfossiliferouslls (1/2) in upper part | 11 ft. |  
| 9 | Limestone, hard blocky, light tan gray; gastropod, productid spines, crinoid stems, Juresania?, Marksia, sparse fusulines througout, Derbyia, white spots Syringopora | 3.4 ft. |  
| 10 | Shale, light gray to tan, Myalina, Astartella, Chonetes and ramose bryozoans, partly covered, probably contains Big Spring Limestone | 5.3 ft. |  
| 11 | Limestone, light reddish brown, very fossiliferous, Derbiya, Myalina, crinoid stems, ramose bryozoan, productid spines, Linoproductus, algal? |  |  
| 12 | Shale, light olive gray, not fissile with ironstone concretions | 2 ft. |  
| 13 | Shale, very fine grained, gray to tan, unfossiliferous, poorly bedded, slightly calcareous | 1.5 ft. |  
| 14 | Shale, slity, light olive gray, unfossiliferous | 1 ft. |  
| 15 | Covered interval | 55 ft. |  
| 16 | Sandstone, hard, jointed, very fine grained, micaceous, calcareous, ripple marked, swirly bedded, unfossiliferous | 0.8 ft. |  |