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  1. Levings Member‏‎ (1 revision)
  2. Elgin Shale Member‏‎ (1 revision)
  3. Tilton Till Member‏‎ (1 revision)
  4. Brickeys Member‏‎ (1 revision)
  5. Witt Coal Member‏‎ (1 revision)
  6. Rosiclare Sandstone Member‏‎ (1 revision)
  7. Bunje Limestone Member‏‎ (1 revision)
  8. Cape Limestone‏‎ (1 revision)
  9. Peyton Colluvium‏‎ (1 revision)
  10. Keokuk Limestone‏‎ (1 revision)
  11. Macoupin Limestone Member‏‎ (1 revision)
  12. Mt. Simon Sandstone‏‎ (1 revision)
  13. Fort Payne Formation‏‎ (1 revision)
  14. Bogota Limestone Member‏‎ (1 revision)
  15. Enion Formation‏‎ (1 revision)
  16. Fern Glen Formation‏‎ (1 revision)
  17. Kingdom Sandstone Member‏‎ (1 revision)
  18. Champlainian Series‏‎ (1 revision)
  19. Neda Formation‏‎ (1 revision)
  20. Romeo Member‏‎ (1 revision)
  21. Modesto Formation‏‎ (1 revision)
  22. Shumway Limestone Member‏‎ (1 revision)
  23. Grand Detour Formation‏‎ (1 revision)
  24. Goreville Limestone Member‏‎ (1 revision)
  25. Mason Group‏‎ (1 revision)
  26. Menard Limestone‏‎ (1 revision)
  27. Farmington Shale Member‏‎ (1 revision)
  28. Seahorne Limestone Member‏‎ (1 revision)
  29. Glossary‏‎ (1 revision)
  30. Cambrian System‏‎ (1 revision)
  31. Grindstaff Sandstone Member‏‎ (1 revision)
  32. Oakland Till Member‏‎ (1 revision)
  33. Pokeberry Limestone Member‏‎ (1 revision)
  34. Wyota Member‏‎ (1 revision)
  35. Sylamore Sandstone‏‎ (1 revision)
  36. Bidwell Coal Member‏‎ (1 revision)
  37. Grayslake Peat‏‎ (1 revision)
  38. McWain Sandstone Member‏‎ (1 revision)
  39. Hoing Sandstone Member‏‎ (1 revision)
  40. New Burnside Coal Member‏‎ (1 revision)
  41. Scales Shale‏‎ (1 revision)
  42. Wise Ridge Coal Member‏‎ (1 revision)
  43. Harrodsburg Limestone Member‏‎ (1 revision)
  44. Dane Member‏‎ (1 revision)
  45. Spechts Ferry Formation‏‎ (1 revision)
  46. Missourian Series‏‎ (1 revision)
  47. Clayton Formation‏‎ (1 revision)
  48. Cincinnatian Series‏‎ (1 revision)
  49. Brereton Limestone Member‏‎ (1 revision)
  50. Hely Member‏‎ (1 revision)
  51. Upper Devonian Series‏‎ (1 revision)
  52. Mahomet Sand Member‏‎ (1 revision)
  53. Merom Sandstone Member‏‎ (1 revision)
  54. Meppen Limestone‏‎ (1 revision)
  55. Delwood Coal Member‏‎ (1 revision)
  56. Elm Member‏‎ (1 revision)
  57. Wilcox Formation‏‎ (1 revision)
  58. Permian System‏‎ (1 revision)
  59. Rocher Member‏‎ (1 revision)
  60. Esmond Till Member‏‎ (1 revision)
  61. Genevievian Stage‏‎ (1 revision)
  62. Dolton Member‏‎ (1 revision)
  63. Derby-Doerun Member‏‎ (1 revision)
  64. De Graff Coal Member‏‎ (1 revision)
  65. Reisner Limestone Member‏‎ (1 revision)
  66. Hillery Till Member‏‎ (1 revision)
  67. Harmony Hill Shale Member‏‎ (1 revision)
  68. Opdyke Coal Member‏‎ (1 revision)
  69. Vandalia Till Member‏‎ (1 revision)
  70. Pliocene Series‏‎ (1 revision)
  71. Mammoth Cave Limestone Megagroup‏‎ (1 revision)
  72. Copperas Creek Sandstone Member‏‎ (1 revision)
  73. Hannibal Shale‏‎ (1 revision)
  74. Bonpas Limestone Member‏‎ (1 revision)
  75. Salem Limestone‏‎ (1 revision)
  76. Wilhelmi Formation‏‎ (1 revision)
  77. Dresbachian Stage‏‎ (1 revision)
  78. Kinderhookian Series‏‎ (1 revision)
  79. Tyson Member‏‎ (1 revision)
  80. Valmeyeran Series‏‎ (1 revision)
  81. Waltersburg Formation‏‎ (1 revision)
  82. Lonsdale Limestone Member‏‎ (1 revision)
  83. Oneota Dolomite‏‎ (1 revision)
  84. Hazel Green Member‏‎ (1 revision)
  85. Yarmouth Soil‏‎ (1 revision)
  86. Dutch Creek Sandstone Member‏‎ (1 revision)
  87. Mincke Member‏‎ (1 revision)
  88. Tonti Sandstone Member‏‎ (1 revision)
  89. Miocene Series‏‎ (1 revision)
  90. Boles Member‏‎ (1 revision)
  91. Lee Center Till Member‏‎ (1 revision)
  92. Wall Member‏‎ (1 revision)
  93. Mascoutah facies‏‎ (1 revision)
  94. Augusta Member‏‎ (1 revision)
  95. Mt. Carmel Sandstone Member‏‎ (1 revision)
  96. Castlewood Member‏‎ (1 revision)
  97. Charter Member‏‎ (1 revision)
  98. La Salle Limestone Member‏‎ (1 revision)
  99. Otis Member‏‎ (1 revision)
  100. Degonia Sandstone‏‎ (1 revision)
  101. Sample Sandstone Member‏‎ (1 revision)
  102. Starved Rock Sandstone Member‏‎ (1 revision)
  103. Flannigan Coal Member‏‎ (1 revision)
  104. Grassy Creek Shale‏‎ (1 revision)
  105. Geneva Dolomite Member‏‎ (1 revision)
  106. New Glarus Member‏‎ (1 revision)
  107. Joachim Dolomite‏‎ (1 revision)
  108. Sonora Formation‏‎ (1 revision)
  109. Blodgett Member‏‎ (1 revision)
  110. Dubuque Formation‏‎ (1 revision)
  111. Maysvillian Stage‏‎ (1 revision)
  112. Afton Soil‏‎ (1 revision)
  113. McCraney Limestone‏‎ (1 revision)
  114. Defiance Member‏‎ (1 revision)
  115. Cahokia Alluvium‏‎ (1 revision)
  116. Franconian Stage‏‎ (1 revision)
  117. Mifflin Formation‏‎ (1 revision)
  118. Kidd Member‏‎ (1 revision)
  119. Cretaceous System‏‎ (1 revision)
  120. Gordonville Member‏‎ (1 revision)
  121. Joppa Member‏‎ (1 revision)
  122. Triassic System‏‎ (1 revision)
  123. Roxana Silt‏‎ (1 revision)
  124. Kaskaskia Sequence‏‎ (1 revision)
  125. Lemont Formation‏‎ (1 revision)
  126. Tripp Limestone Member‏‎ (1 revision)
  127. Canteen member‏‎ (1 revision)
  128. Seville Limestone Member‏‎ (1 revision)
  129. Carlinville Limestone Member‏‎ (1 revision)
  130. De Long Coal Member‏‎ (1 revision)
  131. Tygett Sandstone Member‏‎ (1 revision)
  132. Grassy Knob Chert‏‎ (1 revision)
  133. Kenyon Member‏‎ (1 revision)
  134. Glenhaven Member‏‎ (1 revision)
  135. Belgium Member‏‎ (1 revision)
  136. North Hill Group‏‎ (1 revision)
  137. Spring Grove Member‏‎ (1 revision)
  138. Quimbys Mill Formation‏‎ (1 revision)
  139. Sexton Creek Limestone‏‎ (1 revision)
  140. Blomeyer Member‏‎ (1 revision)
  141. Hulick Till Member‏‎ (1 revision)
  142. New Richmond Sandstone‏‎ (1 revision)
  143. Mt. Rorah Coal Member‏‎ (1 revision)
  144. Alexandrian Series‏‎ (1 revision)
  145. Exline Limestone Member‏‎ (1 revision)
  146. Kellerville Till Member‏‎ (1 revision)
  147. Warsaw Shale‏‎ (1 revision)
  148. Cedar Bluff Limestone Group‏‎ (1 revision)
  149. Farmdale Soil‏‎ (1 revision)
  150. Galesville Sandstone‏‎ (1 revision)
  151. Granger Sandstone Member‏‎ (1 revision)
  152. Virgilian Series‏‎ (1 revision)
  153. Everett Member‏‎ (1 revision)
  154. Howardton Limestone Member‏‎ (1 revision)
  155. Jurassic System‏‎ (1 revision)
  156. Buckhorn Member‏‎ (1 revision)
  157. Thebes Sandstone Member‏‎ (1 revision)
  158. County Line (Alburnett) silt‏‎ (1 revision)
  159. Knobs Megagroup‏‎ (1 revision)
  160. Reel Limestone Member‏‎ (1 revision)
  161. Danville Coal Member‏‎ (1 revision)
  162. Popcorn Sandstone Member‏‎ (1 revision)
  163. Backbone Limestone‏‎ (1 revision)
  164. Athensville Coal Member‏‎ (1 revision)
  165. Chapel Coal Member‏‎ (1 revision)
  166. Momence Sandstone Member‏‎ (1 revision)
  167. Pope Megagroup‏‎ (1 revision)
  168. Birds Member‏‎ (1 revision)
  169. Lierle Clay Member‏‎ (1 revision)
  170. Medusa Member‏‎ (1 revision)
  171. Ironton Sandstone‏‎ (1 revision)
  172. Ogle Till Member‏‎ (1 revision)
  173. Oglesby Member‏‎ (1 revision)
  174. Chouteau Limestone‏‎ (1 revision)
  175. Platteville Group‏‎ (1 revision)
  176. Rock Island Coal Member‏‎ (1 revision)
  177. Lacey Member‏‎ (1 revision)
  178. McLeansboro Group‏‎ (1 revision)
  179. Davis Member‏‎ (1 revision)
  180. Manitowoc Member‏‎ (1 revision)
  181. Decorah Subgroup‏‎ (1 revision)
  182. Friendsville Coal Member‏‎ (1 revision)
  183. Mosalem Formation‏‎ (1 revision)
  184. Creal Springs Limestone Member‏‎ (1 revision)
  185. Mounds Gravel‏‎ (1 revision)
  186. Gunter Sandstone‏‎ (1 revision)
  187. Banner Formation‏‎ (1 revision)
  188. Eagle Point Member‏‎ (1 revision)
  189. Batestown Member‏‎ (1 revision)
  190. Hombergian Stage‏‎ (1 revision)
  191. Tiskilwa Formation‏‎ (1 revision)
  192. Forreston Member‏‎ (1 revision)
  193. Crowleys Ridge Silt‏‎ (1 revision)
  194. Vergennes Sandstone Member‏‎ (1 revision)
  195. Vienna Limestone‏‎ (1 revision)
  196. Mayfield Member‏‎ (1 revision)
  197. Gasperian Stage‏‎ (1 revision)
  198. Fox Valley Member‏‎ (1 revision)
  199. Starrs Cave Limestone‏‎ (1 revision)
  200. Elmhurst Sandstone Member‏‎ (1 revision)
  201. Grove Church Shale‏‎ (1 revision)
  202. Lombard Dolomite Member‏‎ (1 revision)
  203. Knox Dolomite Megagroup‏‎ (1 revision)
  204. Pleasant Grove Soil‏‎ (1 revision)
  205. Hall Limestone Member‏‎ (1 revision)
  206. Anvil Rock Sandstone Member‏‎ (1 revision)
  207. Bilyeu Member‏‎ (1 revision)
  208. Niagaran Series‏‎ (1 revision)
  209. Nutwood Shale Member‏‎ (1 revision)
  210. Morton Tongue‏‎ (1 revision)
  211. Elviran Stage‏‎ (1 revision)
  212. Chesterian Series‏‎ (1 revision)
  213. Tar Springs Sandstone‏‎ (1 revision)
  214. Hennepin Member‏‎ (1 revision)
  215. Sugar Run Formation‏‎ (1 revision)
  216. Pope Creek Coal Member‏‎ (1 revision)
  217. Dement Member‏‎ (1 revision)
  218. Beecher Member‏‎ (1 revision)
  219. Henry Formation‏‎ (1 revision)
  220. Jordan Sandstone‏‎ (1 revision)
  221. Piasa Limestone‏‎ (1 revision)
  222. Wolf Creek Formation‏‎ (1 revision)
  223. Millersville Limestone Member‏‎ (1 revision)
  224. Rivoli Member‏‎ (1 revision)
  225. Allard Limestone Member‏‎ (1 revision)
  226. Orchard Creek Shale Member‏‎ (1 revision)
  227. Kiser Creek Member‏‎ (1 revision)
  228. Elwood Formation‏‎ (1 revision)
  229. Flat Creek Coal Member‏‎ (1 revision)
  230. Schweizer Member‏‎ (1 revision)
  231. Pike Soil‏‎ (1 revision)
  232. Glenwood Formation‏‎ (1 revision)
  233. Girardeau Limestone‏‎ (1 revision)
  234. Offerman Member‏‎ (1 revision)
  235. Cohn Coal Member‏‎ (1 revision)
  236. Clore Formation‏‎ (1 revision)
  237. Livingston Limestone Member‏‎ (1 revision)
  238. Dunleith Formation‏‎ (1 revision)
  239. Morrowan Series‏‎ (1 revision)
  240. Loughridge Sandstone Member‏‎ (1 revision)
  241. Beverly Tongue‏‎ (1 revision)
  242. Clear Creek Chert‏‎ (1 revision)
  243. Garnavillo Member‏‎ (1 revision)
  244. Saverton Shale‏‎ (1 revision)
  245. Little Bear Soil‏‎ (1 revision)
  246. Cheltenham Clay Member‏‎ (1 revision)
  247. Glasford Formation‏‎ (1 revision)
  248. Golconda Group‏‎ (1 revision)
  249. Carboniferous System‏‎ (1 revision)
  250. Moredock Member‏‎ (1 revision)
  251. Sinsinawa Member‏‎ (1 revision)
  252. Alburnett Formation‏‎ (1 revision)
  253. Victory Member‏‎ (1 revision)
  254. Clermont Shale Member‏‎ (1 revision)
  255. Lovell Member‏‎ (1 revision)
  256. West Franklin Limestone Member‏‎ (1 revision)
  257. Chazyan Stage‏‎ (1 revision)
  258. Potsdam Sandstone Megagroup‏‎ (1 revision)
  259. New Haven Coal Member‏‎ (1 revision)
  260. Fort Atkinson Limstone‏‎ (1 revision)
  261. Edenian Stage‏‎ (1 revision)
  262. Eau Claire Formation‏‎ (1 revision)
  263. Embayment Megagroup‏‎ (1 revision)
  264. Potosi Dolomite‏‎ (1 revision)
  265. Sweeney Formation‏‎ (1 revision)
  266. Duncan Mills Member‏‎ (1 revision)
  267. Owl Creek Formation‏‎ (1 revision)
  268. Blanding Formation‏‎ (1 revision)
  269. Lacon Formation‏‎ (1 revision)
  270. Loveland Silt‏‎ (1 revision)
  271. Hunton Limestone Megagroup‏‎ (1 revision)
  272. Stillman Member‏‎ (1 revision)
  273. Nachusa Formation‏‎ (1 revision)
  274. Establishment Member‏‎ (1 revision)
  275. Edgewood Formation‏‎ (1 revision)
  276. Sorento Limestone Member‏‎ (1 revision)
  277. Wedron Group‏‎ (1 revision)
  278. Assumption Coal Member‏‎ (1 revision)
  279. Trempealeauan Stage‏‎ (1 revision)
  280. Haeger Member‏‎ (1 revision)
  281. Paleocene Series‏‎ (1 revision)
  282. Sherwood Member‏‎ (1 revision)
  283. Plano Silt Member‏‎ (1 revision)
  284. Effingham Limestone Member‏‎ (1 revision)
  285. Cooper Limestone Member‏‎ (1 revision)
  286. Woodbury Limestone Member‏‎ (1 revision)
  287. Murphysboro Coal Member‏‎ (1 revision)
  288. Richmondian Stage‏‎ (1 revision)
  289. Jules Soil‏‎ (1 revision)
  290. Shelbyville Coal Member‏‎ (1 revision)
  291. Sterling Till Member‏‎ (1 revision)
  292. Scottville Limestone Member‏‎ (1 revision)
  293. Meadow Loess Member‏‎ (1 revision)
  294. Baylis Formation‏‎ (1 revision)
  295. Chana Member‏‎ (1 revision)
  296. Paleozoic Erathem‏‎ (1 revision)
  297. Dutchtown Limestone‏‎ (1 revision)
  298. Arsenal Member‏‎ (1 revision)
  299. Desmoinesian Series‏‎ (1 revision)
  300. Reynoldsburg Coal Member‏‎ (1 revision)
  301. Cedar Valley Limestone‏‎ (1 revision)
  302. Radnor Till Member‏‎ (1 revision)
  303. Allenby Coal Member‏‎ (1 revision)
  304. Robein Member‏‎ (1 revision)
  305. Teneriffe Silt‏‎ (1 revision)
  306. Walnut Grove Limestone Member‏‎ (1 revision)
  307. Absaroka Sequence‏‎ (1 revision)
  308. Ramp Creek Limestone Member‏‎ (1 revision)
  309. Mississippian Subsystem‏‎ (1 revision)
  310. Eldena Member‏‎ (1 revision)
  311. Levias Limestone Member‏‎ (1 revision)
  312. Kress Member‏‎ (1 revision)
  313. Oak formation‏‎ (1 revision)
  314. Brandon Bridge Member‏‎ (1 revision)
  315. Lake Creek Coal Member‏‎ (1 revision)
  316. Lawson Shale Member‏‎ (1 revision)
  317. Gunn Member‏‎ (1 revision)
  318. St. James Member‏‎ (1 revision)
  319. Scottsburg Limestone Member‏‎ (1 revision)
  320. Conant Limestone Member‏‎ (1 revision)
  321. Galum Limestone Member‏‎ (1 revision)
  322. Beaver Bend Limestone Member‏‎ (1 revision)
  323. Toulon Member‏‎ (1 revision)
  324. Prairie du Chien Group‏‎ (1 revision)
  325. Cora Limestone Member‏‎ (1 revision)
  326. Middle Devonian Series‏‎ (1 revision)
  327. Bond Formation‏‎ (1 revision)
  328. Troutman Member‏‎ (1 revision)
  329. St. Peter Sandstone‏‎ (1 revision)
  330. Eminence Formation‏‎ (1 revision)
  331. Markgraf Member‏‎ (1 revision)
  332. Maquoketa Shale Group‏‎ (1 revision)
  333. McNairy Formation‏‎ (1 revision)
  334. Manley Coal Member‏‎ (1 revision)
  335. Proviso Siltstone Member‏‎ (1 revision)
  336. Piatt Member‏‎ (1 revision)
  337. Greenup Limestone Member‏‎ (1 revision)
  338. Argyle Till Member‏‎ (1 revision)
  339. Kenwood Member‏‎ (1 revision)
  340. Snider Till Member‏‎ (1 revision)
  341. Silurian System‏‎ (1 revision)
  342. Sharpsboro Member‏‎ (1 revision)
  343. Mortimer Member‏‎ (1 revision)
  344. West Lebanon Formation‏‎ (1 revision)
  345. Capron Till Member‏‎ (1 revision)
  346. Harmattan Till Member‏‎ (1 revision)
  347. Marywood Member‏‎ (1 revision)
  348. Glencoe Member‏‎ (1 revision)
  349. Crane Member‏‎ (1 revision)
  350. State Pond Member‏‎ (1 revision)
  351. Blocher Shale‏‎ (1 revision)
  352. Guttenberg Formation‏‎ (1 revision)
  353. Glen Dean Limestone‏‎ (1 revision)
  354. Chalfin Member‏‎ (1 revision)
  355. Gimlet Sandstone Member‏‎ (1 revision)
  356. Sankoty Sand Member‏‎ (1 revision)
  357. Trentonian Stage‏‎ (1 revision)
  358. Kankakee Formation‏‎ (1 revision)
  359. Harkness Silt Member‏‎ (1 revision)
  360. Abernathy Member‏‎ (1 revision)
  361. Racine Formation‏‎ (1 revision)
  362. Pecatonica Formation‏‎ (1 revision)
  363. Sauk Sequence‏‎ (1 revision)
  364. Grigg tongue‏‎ (1 revision)
  365. Petersburg Silt‏‎ (1 revision)
  366. Finnie Sandstone Member‏‎ (1 revision)
  367. Devonian System‏‎ (1 revision)
  368. Strawbridge Member‏‎ (1 revision)
  369. Pleistocene Series‏‎ (1 revision)
  370. Coralville Member‏‎ (1 revision)
  371. Pennsylvanian Subsystem‏‎ (1 revision)
  372. Everton Dolomite‏‎ (1 revision)
  373. Eocene Series‏‎ (1 revision)
  374. Solon Member‏‎ (1 revision)
  375. Rendleman Oolite Bed‏‎ (1 revision)
  376. Winslow Till Member‏‎ (1 revision)
  377. Fults Member‏‎ (1 revision)
  378. Curlew Limestone Member‏‎ (1 revision)
  379. New London Member‏‎ (1 revision)
  380. Coggan Member‏‎ (1 revision)
  381. West Baden Group‏‎ (1 revision)
  382. Lower Devonian Series‏‎ (1 revision)
  383. Plattin Subgroup‏‎ (1 revision)
  384. Clement Member‏‎ (1 revision)
  385. Shakopee Dolomite‏‎ (1 revision)
  386. Cayugan Series‏‎ (1 revision)
  387. Stonefort Limestone Member‏‎ (1 revision)
  388. Kinkaid Limestone‏‎ (1 revision)
  389. Murray Bluff Sandstone Member‏‎ (1 revision)
  390. Walgreen Member‏‎ (1 revision)
  391. St. Clair Limestone‏‎ (1 revision)
  392. Blackriveran Stage‏‎ (1 revision)
  393. Louisiana Limestone‏‎ (1 revision)
  394. Metz Member‏‎ (1 revision)
  395. Bernadotte Sandstone Member‏‎ (1 revision)
  396. Yorkville Member‏‎ (1 revision)
  397. Bankston Fork Limestone Member‏‎ (1 revision)
  398. Delavan Member‏‎ (1 revision)
  399. Hermon Coal Member‏‎ (1 revision)
  400. Daysville Dolomite Member‏‎ (1 revision)
  401. Gulfian Series‏‎ (1 revision)
  402. Ancell Group‏‎ (1 revision)
  403. Willis Coal Member‏‎ (1 revision)
  404. Pond Creek Coal Member‏‎ (1 revision)
  405. Porters Creek Formation‏‎ (1 revision)
  406. Gila Limestone Member‏‎ (1 revision)
  407. Tertiary System‏‎ (1 revision)
  408. Noix Oolite Member‏‎ (1 revision)
  409. Cenozoic Erathem‏‎ (1 revision)
  410. Inglefield Sandstone Member‏‎ (1 revision)
  411. Wapsipinicon Limestone‏‎ (1 revision)
  412. Prospect Hill Siltstone‏‎ (1 revision)
  413. Coffeen Limestone Member‏‎ (1 revision)
  414. Mesozoic Erathem‏‎ (1 revision)
  415. Reelsville Limestone Member‏‎ (1 revision)
  416. Kings Lake Formation‏‎ (1 revision)
  417. Shoal Creek Limestone Member‏‎ (1 revision)
  418. Hardinsburg Sandstone‏‎ (1 revision)
  419. Tippecanoe Sequence‏‎ (1 revision)
  420. Tete de Morts Formation‏‎ (1 revision)
  421. Babylon Sandstone Member‏‎ (1 revision)
  422. Two Rivers Member‏‎ (1 revision)
  423. Wise Lake Formation‏‎ (1 revision)
  424. McClearys Bluff Coal Member‏‎ (1 revision)
  425. Brush Coal Member‏‎ (1 revision)
  426. Briton Member‏‎ (1 revision)
  427. Kewaunee Formation‏‎ (1 revision)
  428. Montrose Chert Member‏‎ (1 revision)
  429. Metropolis Formation‏‎ (1 revision)
  430. Brainard Shale‏‎ (1 revision)
  431. Hegeler Till Member‏‎ (1 revision)
  432. Negli Creek Limestone Member‏‎ (1 revision)
  433. Buelter Member‏‎ (1 revision)
  434. Croixan Series‏‎ (1 revision)
  435. Rock Branch Coal Member‏‎ (1 revision)
  436. Rapid Member‏‎ (1 revision)
  437. Calhoun Coal Member‏‎ (1 revision)
  438. Walche Limestone Member‏‎ (1 revision)
  439. Franconia Formation‏‎ (1 revision)
  440. Womac Coal Member‏‎ (1 revision)
  441. Little Vermilion Limestone Member‏‎ (2 revisions)
  442. Yankeetown Sandstone‏‎ (2 revisions)
  443. Mackinaw Member‏‎ (2 revisions)
  444. Trowbridge Coal Member‏‎ (2 revisions)
  445. Cypress Sandstone‏‎ (2 revisions)
  446. Ullin Limestone‏‎ (2 revisions)
  447. Kimmswick Subgroup‏‎ (2 revisions)
  448. Downeys Bluff Limestone‏‎ (2 revisions)
  449. Lake Michigan Member‏‎ (2 revisions)
  450. Lake Michigan Formation‏‎ (2 revisions)
  451. New Albany Shale Group‏‎ (2 revisions)
  452. Glen Park Formation‏‎ (2 revisions)
  453. Winnetka Member‏‎ (2 revisions)
  454. Waukegan Member‏‎ (2 revisions)
  455. Fredonia Limestone Member‏‎ (2 revisions)
  456. Ridenhower Formation‏‎ (2 revisions)
  457. Peoria Silt‏‎ (2 revisions)
  458. Sheboygan Member‏‎ (2 revisions)
  459. Spar Mountain Sandstone Member‏‎ (2 revisions)
  460. South Haven Member‏‎ (2 revisions)
  461. Galena Group‏‎ (2 revisions)
  462. St. Laurent Formation‏‎ (2 revisions)
  463. Lake Forest Member‏‎ (2 revisions)
  464. Bailey Limestone‏‎ (2 revisions)
  465. Wilmette Bed‏‎ (2 revisions)
  466. Renault Limestone‏‎ (2 revisions)
  467. St. Louis Limestone‏‎ (2 revisions)
  468. Aux Vases Sandstone‏‎ (2 revisions)
  469. Ashmore Tongue‏‎ (2 revisions)
  470. Ravinia Sand Member‏‎ (2 revisions)
  471. Grand Tower Limestone‏‎ (2 revisions)
  472. Peddicord Tongue‏‎ (2 revisions)
  473. Karnak Limestone Member‏‎ (2 revisions)
  474. Tuscaloosa Formation‏‎ (2 revisions)
  475. Bethel Sandstone‏‎ (2 revisions)
  476. Haney Limestone‏‎ (2 revisions)
  477. Parkland Sand‏‎ (2 revisions)
  478. Holocene Series‏‎ (2 revisions)
  479. Borden Siltstone‏‎ (2 revisions)
  480. Richland Loess‏‎ (2 revisions)
  481. Kewanee Group‏‎ (2 revisions)
  482. Moccasin Springs Formation‏‎ (2 revisions)
  483. Oak Grove Limestone Member‏‎ (3 revisions)
  484. Quaternary System‏‎ (3 revisions)
  485. Lowell Coal Member‏‎ (3 revisions)
  486. Briar Hill Coal Member‏‎ (3 revisions)
  487. Energy Shale Member‏‎ (3 revisions)
  488. Turner Mine Shale Member‏‎ (3 revisions)
  489. Mecca Quarry Shale Member‏‎ (3 revisions)
  490. Big Clifty Sandstone Member‏‎ (3 revisions)
  491. Fraileys Shale‏‎ (3 revisions)
  492. Anna Shale Member‏‎ (3 revisions)
  493. Oligocene Series‏‎ (3 revisions)
  494. Alum Cave Limestone Member‏‎ (3 revisions)
  495. Wheeler Coal Member or Bed‏‎ (3 revisions)
  496. Excello Shale Member‏‎ (3 revisions)
  497. Summum Coal Member‏‎ (3 revisions)
  498. O'Nan Coal Member‏‎ (3 revisions)
  499. Lingle Formation‏‎ (3 revisions)
  500. Canton Shale Member‏‎ (3 revisions)

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