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

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