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  1. Chesterian Series‏‎ (89 links)
  2. Devonian System‏‎ (84 links)
  3. Missourian Series‏‎ (83 links)
  4. Valmeyeran Series‏‎ (80 links)
  5. Mammoth Cave Limestone Megagroup‏‎ (77 links)
  6. Spoon Formation‏‎ (73 links)
  7. Platteville Group‏‎ (73 links)
  8. Cambrian System‏‎ (73 links)
  9. Knox Dolomite Megagroup‏‎ (71 links)
  10. Galena Group‏‎ (71 links)
  11. Croixan Series‏‎ (69 links)
  12. Trentonian Stage‏‎ (69 links)
  13. Silurian System‏‎ (68 links)
  14. Plattin Subgroup‏‎ (58 links)
  15. Modesto Formation‏‎ (57 links)
  16. Middle Devonian Series‏‎ (57 links)
  17. Ancell Group‏‎ (53 links)
  18. Kimmswick Subgroup‏‎ (48 links)
  19. Mattoon Formation‏‎ (48 links)
  20. Elviran Stage‏‎ (48 links)
  21. Galatia Channel:Introduction‏‎ (46 links)
  22. Galatia Channel:Channels and Cyclothems: A Summary Model‏‎ (46 links)
  23. Galatia Channel:Evolution of a Peat - Contemporaneous Channel - The Galatia Channel, Middle Pennsylvanian, of the Illinois Basin‏‎ (46 links)
  24. Galatia Channel:Appendix‏‎ (45 links)
  25. Galatia Channel:Dykersburg (Shale) Member‏‎ (45 links)
  26. Galatia Channel:Houchin Creek Coal‏‎ (45 links)
  27. Galatia Channel:Plates‏‎ (45 links)
  28. Galatia Channel:Summary‏‎ (45 links)
  29. Galatia Channel:Tables‏‎ (45 links)
  30. Galatia Channel:Excello Shale Member‏‎ (45 links)
  31. Galatia Channel:Turner Mine Shale Member‏‎ (45 links)
  32. Galatia Channel:Conclusions‏‎ (45 links)
  33. Galatia Channel:Figures‏‎ (45 links)
  34. Galatia Channel:Similar Channels Affecting Other Coal Seams‏‎ (45 links)
  35. Galatia Channel:Underclay of Springfield Coal‏‎ (45 links)
  36. Galatia Channel:Galatia Member‏‎ (45 links)
  37. Galatia Channel:Springfield Coal‏‎ (45 links)
  38. Galatia Channel:References‏‎ (45 links)
  39. Galatia Channel:Delafield Member‏‎ (45 links)
  40. Galatia Channel:Hanover Limestone Member‏‎ (45 links)
  41. Galatia Channel:St. David Limestone Member‏‎ (45 links)
  42. Galatia Channel:Acknowledgments‏‎ (45 links)
  43. Galatia Channel:Discussion‏‎ (45 links)
  44. Galatia Channel:Other Channels Related to the Galatia Channel‏‎ (45 links)
  45. Galatia Channel:Stratigraphy‏‎ (45 links)
  46. McCormick Group‏‎ (44 links)
  47. Alexandrian Series‏‎ (43 links)
  48. Abbott Formation‏‎ (41 links)
  49. Embayment Megagroup‏‎ (41 links)
  50. Dresbachian Stage‏‎ (40 links)
  51. Dunleith Formation‏‎ (39 links)
  52. Bond Formation‏‎ (39 links)
  53. Glasford Formation‏‎ (39 links)
  54. Gasperian Stage‏‎ (38 links)
  55. Cincinnatian Series‏‎ (38 links)
  56. Holocene Series‏‎ (37 links)
  57. Wedron Group‏‎ (37 links)
  58. Knobs Megagroup‏‎ (35 links)
  59. Atokan Series‏‎ (35 links)
  60. New Albany Shale Group‏‎ (34 links)
  61. Trempealeauan Stage‏‎ (34 links)
  62. Galatia Channel:Peat Developed at Lowstand‏‎ (32 links)
  63. Galatia Channel:Sullivan Channel‏‎ (32 links)
  64. Galatia Channel:Baker Coal and Winslow-Henderson Channel‏‎ (32 links)
  65. Galatia Channel:Effingham Channel‏‎ (32 links)
  66. Galatia Channel:Leslie Cemetery Channel‏‎ (32 links)
  67. Galatia Channel:Rapid Transgression, Gradual Regression‏‎ (32 links)
  68. Galatia Channel:Colchester Coal and Francis Creek Shale‏‎ (32 links)
  69. Galatia Channel:Linkage of Climate and Eustasy‏‎ (32 links)
  70. Galatia Channel:Relationship of Effingham and Galatia Channels‏‎ (32 links)
  71. Decorah Subgroup‏‎ (32 links)
  72. Galatia Channel:Model of Channel Development‏‎ (32 links)
  73. Galatia Channel:Danville Coal‏‎ (32 links)
  74. Galatia Channel:Murphysboro Coal and Oraville Channel‏‎ (32 links)
  75. Galatia Channel:Other Channels‏‎ (32 links)
  76. Galatia Channel:Herrin Coal, Energy Shale, and Walshville Channel‏‎ (32 links)
  77. Banner Formation‏‎ (31 links)
  78. Mason Group‏‎ (31 links)
  79. Caseyville Formation‏‎ (30 links)
  80. Maquoketa Shale Group‏‎ (30 links)
  81. Grand Detour Formation‏‎ (29 links)
  82. Niagaran Series‏‎ (29 links)
  83. Morrowan Series‏‎ (29 links)
  84. Potsdam Sandstone Megagroup‏‎ (28 links)
  85. Franconian Stage‏‎ (28 links)
  86. Mt. Simon Sandstone‏‎ (27 links)
  87. Virgilian Series‏‎ (27 links)
  88. Mesozoic Erathem‏‎ (27 links)
  89. Cedar Bluff Limestone Group‏‎ (27 links)
  90. Cretaceous System‏‎ (26 links)
  91. Joachim Dolomite‏‎ (26 links)
  92. Genevievian Stage‏‎ (26 links)
  93. Pecatonica Formation‏‎ (26 links)
  94. Kinderhookian Series‏‎ (26 links)
  95. Lingle Formation‏‎ (25 links)
  96. Okaw Group‏‎ (25 links)
  97. Paint Creek Group‏‎ (25 links)
  98. Prairie du Chien Group‏‎ (25 links)
  99. Mifflin Formation‏‎ (25 links)
  100. West Baden Group‏‎ (24 links)
  101. Gulfian Series‏‎ (24 links)
  102. Glenwood Formation‏‎ (24 links)
  103. Tertiary System‏‎ (23 links)
  104. Renault Limestone‏‎ (23 links)
  105. Upper Devonian Series‏‎ (23 links)
  106. Ste. Genevieve Limestone‏‎ (23 links)
  107. Lake Michigan Formation‏‎ (23 links)
  108. Canadian Series‏‎ (23 links)
  109. Wapsipinicon Limestone‏‎ (23 links)
  110. Ridenhower Formation‏‎ (22 links)
  111. Henry Formation‏‎ (22 links)
  112. Hombergian Stage‏‎ (22 links)
  113. Grand Tower Limestone‏‎ (22 links)
  114. Maysvillian Stage‏‎ (21 links)
  115. Nachusa Formation‏‎ (21 links)
  116. Scales Shale‏‎ (21 links)
  117. Quimbys Mill Formation‏‎ (21 links)
  118. Golconda Group‏‎ (21 links)
  119. Salem Limestone‏‎ (21 links)
  120. Cedar Valley Limestone‏‎ (21 links)
  121. Equality Formation‏‎ (21 links)
  122. Ironton Sandstone‏‎ (21 links)
  123. Kankakee Formation‏‎ (20 links)
  124. Roxana Silt‏‎ (20 links)
  125. St. Peter Sandstone‏‎ (20 links)
  126. Clore Formation‏‎ (19 links)
  127. Menard Limestone‏‎ (19 links)
  128. Lemont Formation‏‎ (19 links)
  129. Fraileys Shale‏‎ (19 links)
  130. Eau Claire Formation‏‎ (19 links)
  131. Kinkaid Limestone‏‎ (19 links)
  132. Wise Lake Formation‏‎ (19 links)
  133. Ullin Limestone‏‎ (19 links)
  134. Big Clifty Sandstone Member‏‎ (19 links)
  135. Battery Rock Sandstone Member‏‎ (19 links)
  136. Guttenberg Formation‏‎ (19 links)
  137. Kings Lake Formation‏‎ (19 links)
  138. Aux Vases Sandstone‏‎ (19 links)
  139. Richmondian Stage‏‎ (19 links)
  140. Spechts Ferry Formation‏‎ (19 links)
  141. Tiskilwa Formation‏‎ (18 links)
  142. Oneota Dolomite‏‎ (18 links)
  143. Pounds Sandstone Member‏‎ (18 links)
  144. Dutchtown Limestone‏‎ (18 links)
  145. Kewaunee Formation‏‎ (18 links)
  146. North Hill Group‏‎ (18 links)
  147. Joliet Formation‏‎ (18 links)
  148. Lower Devonian Series‏‎ (17 links)
  149. Franconia Formation‏‎ (17 links)
  150. Haney Limestone‏‎ (17 links)
  151. Karnak Limestone Member‏‎ (17 links)
  152. Downeys Bluff Limestone‏‎ (17 links)
  153. Winnebago Formation‏‎ (17 links)
  154. Lake Michigan Member‏‎ (17 links)
  155. Spar Mountain Sandstone Member‏‎ (16 links)
  156. Hannibal Shale‏‎ (16 links)
  157. Fredonia Limestone Member‏‎ (16 links)
  158. Yankeetown Sandstone‏‎ (16 links)
  159. Wilhelmi Formation‏‎ (16 links)
  160. Beech Creek Limestone‏‎ (16 links)
  161. Borden Siltstone‏‎ (16 links)
  162. Moredock Member‏‎ (15 links)
  163. Bethel Sandstone‏‎ (15 links)
  164. Buckhorn Member‏‎ (15 links)
  165. Reelsville Limestone Member‏‎ (15 links)
  166. Garnavillo Member‏‎ (15 links)
  167. Hazelwood Member‏‎ (15 links)
  168. St. James Member‏‎ (15 links)
  169. Strawbridge Member‏‎ (15 links)
  170. Abernathy Member‏‎ (15 links)
  171. Blomeyer Member‏‎ (15 links)
  172. Baylis Formation‏‎ (15 links)
  173. Sinsinawa Member‏‎ (15 links)
  174. Establishment Member‏‎ (15 links)
  175. Hely Member‏‎ (15 links)
  176. Mortimer Member‏‎ (15 links)
  177. Dement Member‏‎ (15 links)
  178. Eagle Point Member‏‎ (15 links)
  179. Everett Member‏‎ (15 links)
  180. Francis Creek Shale Member‏‎ (15 links)
  181. Glencoe Member‏‎ (15 links)
  182. Walgreen Member‏‎ (15 links)
  183. Wyota Member‏‎ (15 links)
  184. Grover Gravel‏‎ (15 links)
  185. Castlewood Member‏‎ (15 links)
  186. Daysville Dolomite Member‏‎ (15 links)
  187. Glenhaven Member‏‎ (15 links)
  188. Wall Member‏‎ (15 links)
  189. Beaver Bend Limestone Member‏‎ (15 links)
  190. Brickeys Member‏‎ (15 links)
  191. Mounds Gravel‏‎ (15 links)
  192. Colchester Coal Member‏‎ (15 links)
  193. Herrin Coal Member‏‎ (15 links)
  194. Eminence Formation‏‎ (15 links)
  195. Keokuk Limestone‏‎ (15 links)
  196. Trivoli Sandstone Member‏‎ (15 links)
  197. Paleocene Series‏‎ (15 links)
  198. Briton Member‏‎ (15 links)
  199. Peoria Silt‏‎ (15 links)
  200. Pearl Formation‏‎ (15 links)
  201. Sherwood Member‏‎ (15 links)
  202. Eldena Member‏‎ (15 links)
  203. Forreston Member‏‎ (15 links)
  204. Springville Shale‏‎ (15 links)
  205. Beecher Member‏‎ (15 links)
  206. New London Member‏‎ (15 links)
  207. Pliocene Series‏‎ (15 links)
  208. Rivoli Member‏‎ (15 links)
  209. Sample Sandstone Member‏‎ (15 links)
  210. Cypress Sandstone‏‎ (15 links)
  211. Elm Member‏‎ (15 links)
  212. Fairplay Member‏‎ (15 links)
  213. Stillman Member‏‎ (15 links)
  214. Mincke Member‏‎ (15 links)
  215. Victory Member‏‎ (15 links)
  216. Clement Member‏‎ (15 links)
  217. Shullsburg Member‏‎ (15 links)
  218. Hazel Green Member‏‎ (15 links)
  219. Matson Member‏‎ (14 links)
  220. Medusa Member‏‎ (14 links)
  221. Tygett Sandstone Member‏‎ (14 links)
  222. Blodgett Member‏‎ (14 links)
  223. Oglesby Member‏‎ (14 links)
  224. Cora Limestone Member‏‎ (14 links)
  225. Kingdom Sandstone Member‏‎ (14 links)
  226. Tyson Member‏‎ (14 links)
  227. Arsenal Member‏‎ (14 links)
  228. Bailey Limestone‏‎ (14 links)
  229. Negli Creek Limestone Member‏‎ (14 links)
  230. Tuscaloosa Formation‏‎ (14 links)
  231. Chana Member‏‎ (14 links)
  232. Scottsburg Limestone Member‏‎ (14 links)
  233. Sharpsboro Member‏‎ (14 links)
  234. St. Louis Limestone‏‎ (14 links)
  235. Nokomis Sandstone Member‏‎ (14 links)
  236. Davis Coal Member‏‎ (14 links)
  237. Grassy Knob Chert‏‎ (14 links)
  238. Hennepin Member‏‎ (14 links)
  239. Starved Rock Sandstone Member‏‎ (14 links)
  240. Elgin Shale Member‏‎ (14 links)
  241. Tonti Sandstone Member‏‎ (14 links)
  242. Boles Member‏‎ (14 links)
  243. Edgewood Formation‏‎ (14 links)
  244. Kress Member‏‎ (14 links)
  245. Orchard Creek Shale Member‏‎ (14 links)
  246. Metz Member‏‎ (14 links)
  247. Allard Limestone Member‏‎ (14 links)
  248. New Glarus Member‏‎ (14 links)
  249. Nutwood Shale Member‏‎ (14 links)
  250. Cave Hill Shale Member‏‎ (14 links)
  251. Rosiclare Sandstone Member‏‎ (14 links)
  252. Seelyville Coal Member‏‎ (14 links)
  253. Ford Station Limestone Member‏‎ (14 links)
  254. Hardinsburg Sandstone‏‎ (14 links)
  255. Loughridge Sandstone Member‏‎ (14 links)
  256. Chazyan Stage‏‎ (14 links)
  257. Thebes Sandstone Member‏‎ (14 links)
  258. Augusta Member‏‎ (14 links)
  259. Popcorn Sandstone Member‏‎ (14 links)
  260. Delavan Member‏‎ (14 links)
  261. Gordonville Member‏‎ (14 links)
  262. Harmony Hill Shale Member‏‎ (14 links)
  263. Goreville Limestone Member‏‎ (14 links)
  264. McNairy Formation‏‎ (14 links)
  265. Dane Member‏‎ (14 links)
  266. Defiance Member‏‎ (14 links)
  267. Dubuque Formation‏‎ (14 links)
  268. Levias Limestone Member‏‎ (14 links)
  269. Stonefort Limestone Member‏‎ (13 links)
  270. Tarter Coal Member‏‎ (13 links)
  271. Vienna Limestone‏‎ (13 links)
  272. Witt Coal Member‏‎ (13 links)
  273. Piasa Limestone‏‎ (13 links)
  274. Cardiff Coal Member‏‎ (13 links)
  275. Rock Branch Coal Member‏‎ (13 links)
  276. Shakopee Dolomite‏‎ (13 links)
  277. Danville Coal Member‏‎ (13 links)
  278. Shumway Limestone Member‏‎ (13 links)
  279. Degonia Sandstone‏‎ (13 links)
  280. Dutch Creek Sandstone Member‏‎ (13 links)
  281. Fox Valley Member‏‎ (13 links)
  282. Glen Dean Limestone‏‎ (13 links)
  283. Granger Sandstone Member‏‎ (13 links)
  284. Hall Limestone Member‏‎ (13 links)
  285. Yorkville Member‏‎ (13 links)
  286. Mayfield Member‏‎ (13 links)
  287. Sorento Limestone Member‏‎ (13 links)
  288. Womac Coal Member‏‎ (13 links)
  289. Bidwell Coal Member‏‎ (13 links)
  290. Noix Oolite Member‏‎ (13 links)
  291. Breezy Hill Limestone Member‏‎ (13 links)
  292. Buelter Member‏‎ (13 links)
  293. Carlinville Limestone Member‏‎ (13 links)
  294. Reisner Limestone Member‏‎ (13 links)
  295. Rock Island Coal Member‏‎ (13 links)
  296. Coffeen Limestone Member‏‎ (13 links)
  297. Delwood Coal Member‏‎ (13 links)
  298. Dykersburg Shale Member‏‎ (13 links)
  299. Finnie Sandstone Member‏‎ (13 links)
  300. Peddicord Tongue‏‎ (13 links)
  301. Grassy Creek Shale‏‎ (13 links)
  302. Inglefield Sandstone Member‏‎ (13 links)
  303. Davis Member‏‎ (13 links)
  304. Litchfield Coal Member‏‎ (13 links)
  305. Starrs Cave Limestone‏‎ (13 links)
  306. Macoupin Limestone Member‏‎ (13 links)
  307. Clermont Shale Member‏‎ (13 links)
  308. Tioga Bentonite Bed‏‎ (13 links)
  309. Abingdon Coal Member‏‎ (13 links)
  310. Walche Limestone Member‏‎ (13 links)
  311. Assumption Coal Member‏‎ (13 links)
  312. Bankston Fork Limestone Member‏‎ (13 links)
  313. Woodbury Limestone Member‏‎ (13 links)
  314. Bogota Limestone Member‏‎ (13 links)
  315. Omega Limestone Member‏‎ (13 links)
  316. Brereton Limestone Member‏‎ (13 links)
  317. Pleasantview Sandstone Member‏‎ (13 links)
  318. Bunje Limestone Member‏‎ (13 links)
  319. Chapel Coal Member‏‎ (13 links)
  320. Scottville Limestone Member‏‎ (13 links)
  321. Covel Conglomerate Member‏‎ (13 links)
  322. Shawneetown Coal Member‏‎ (13 links)
  323. Flannigan Coal Member‏‎ (13 links)
  324. Geneva Dolomite Member‏‎ (13 links)
  325. Charter Member‏‎ (13 links)
  326. Isabel Sandstone Member‏‎ (13 links)
  327. Derby-Doerun Member‏‎ (13 links)
  328. Little Vermilion Limestone Member‏‎ (13 links)
  329. Livingston Limestone Member‏‎ (13 links)
  330. Summum Coal Member‏‎ (13 links)
  331. Merom Sandstone Member‏‎ (13 links)
  332. Moccasin Springs Formation‏‎ (13 links)
  333. Athensville Coal Member‏‎ (13 links)
  334. West Franklin Limestone Member‏‎ (13 links)
  335. New Burnside Coal Member‏‎ (13 links)
  336. Big Creek Shale Member‏‎ (13 links)
  337. Opdyke Coal Member‏‎ (13 links)
  338. Briar Hill Coal Member‏‎ (13 links)
  339. Pokeberry Limestone Member‏‎ (13 links)
  340. Raccoon Creek Group‏‎ (13 links)
  341. Purington Shale Member‏‎ (13 links)
  342. Rendleman Oolite Bed‏‎ (13 links)
  343. Cheltenham Clay Member‏‎ (13 links)
  344. Roodhouse Coal Member‏‎ (13 links)
  345. Cohn Coal Member‏‎ (13 links)
  346. Seahorne Limestone Member‏‎ (13 links)
  347. Cramer Limestone Member‏‎ (13 links)
  348. Shelbyville Coal Member‏‎ (13 links)
  349. Dix Limestone Member‏‎ (13 links)
  350. Flat Creek Coal Member‏‎ (13 links)
  351. Greenbush Coal Member‏‎ (13 links)
  352. Hanover Limestone Member‏‎ (13 links)
  353. Crane Member‏‎ (13 links)
  354. Hermon Coal Member‏‎ (13 links)
  355. Elmhurst Sandstone Member‏‎ (13 links)
  356. Jake Creek Sandstone Member‏‎ (13 links)
  357. Spring Lake Coal Member‏‎ (13 links)
  358. Lonsdale Limestone Member‏‎ (13 links)
  359. Edenian Stage‏‎ (13 links)
  360. Manley Coal Member‏‎ (13 links)
  361. Tripp Limestone Member‏‎ (13 links)
  362. Mt. Carmel Sandstone Member‏‎ (13 links)
  363. Wiley Coal Member‏‎ (13 links)
  364. Eocene Series‏‎ (13 links)
  365. Pond Creek Coal Member‏‎ (13 links)
  366. Burroughs Limestone Member‏‎ (13 links)
  367. Reynoldsburg Coal Member‏‎ (13 links)
  368. Creal Springs Limestone Member‏‎ (13 links)
  369. Batestown Member‏‎ (13 links)
  370. De Graff Coal Member‏‎ (13 links)
  371. Effingham Limestone Member‏‎ (13 links)
  372. Excello Shale Member‏‎ (13 links)
  373. Friendsville Coal Member‏‎ (13 links)
  374. Greenup Limestone Member‏‎ (13 links)
  375. Gunn Member‏‎ (13 links)
  376. Lombard Dolomite Member‏‎ (13 links)
  377. Jamestown Coal Member‏‎ (13 links)
  378. La Salle Limestone Member‏‎ (13 links)
  379. Springfield and Harrisburg Coal Members‏‎ (13 links)
  380. Sweetland Creek Shale‏‎ (13 links)
  381. Vergennes Sandstone Member‏‎ (13 links)
  382. Allenby Coal Member‏‎ (13 links)
  383. Momence Sandstone Member‏‎ (13 links)
  384. Walnut Grove Limestone Member‏‎ (13 links)
  385. Mt. Rorah Coal Member‏‎ (13 links)
  386. New Haven Coal Member‏‎ (13 links)
  387. Bonpas Limestone Member‏‎ (13 links)
  388. Calhoun Coal Member‏‎ (13 links)
  389. Ramp Creek Limestone Member‏‎ (13 links)
  390. Conant Limestone Member‏‎ (13 links)
  391. Curlew Limestone Member‏‎ (13 links)
  392. De Koven Coal Member‏‎ (13 links)
  393. Exline Limestone Member‏‎ (13 links)
  394. Gila Limestone Member‏‎ (13 links)
  395. Grindstaff Sandstone Member‏‎ (13 links)
  396. Kenyon Member‏‎ (13 links)
  397. Hoing Sandstone Member‏‎ (13 links)
  398. Proviso Siltstone Member‏‎ (13 links)
  399. Lake Creek Coal Member‏‎ (13 links)
  400. Louisiana Limestone‏‎ (13 links)
  401. Sylamore Sandstone‏‎ (13 links)
  402. McWain Sandstone Member‏‎ (13 links)
  403. Millersville Limestone Member‏‎ (13 links)
  404. Vermilionville Sandstone Member‏‎ (13 links)
  405. Murphysboro Coal Member‏‎ (13 links)
  406. Willis Coal Member‏‎ (13 links)
  407. Oak Grove Limestone Member‏‎ (13 links)
  408. Palestine Sandstone‏‎ (13 links)
  409. Browning Sandstone Member‏‎ (13 links)
  410. Pope Creek Coal Member‏‎ (13 links)
  411. Canton Shale Member‏‎ (13 links)
  412. Cooper Limestone Member‏‎ (13 links)
  413. Seville Limestone Member‏‎ (13 links)
  414. Shoal Creek Limestone Member‏‎ (13 links)
  415. De Long Coal Member‏‎ (13 links)
  416. Fort Atkinson Limstone‏‎ (13 links)
  417. Gimlet Sandstone Member‏‎ (13 links)
  418. Grove Church Shale‏‎ (13 links)
  419. Harrodsburg Limestone Member‏‎ (13 links)
  420. Lacey Member‏‎ (13 links)
  421. Joppa Member‏‎ (13 links)
  422. Lawson Shale Member‏‎ (13 links)
  423. Lowell Coal Member‏‎ (13 links)
  424. Marywood Member‏‎ (13 links)
  425. Tar Springs Sandstone‏‎ (13 links)
  426. Mecca Quarry Shale Member‏‎ (13 links)
  427. Trowbridge Coal Member‏‎ (13 links)
  428. Anna Shale Member‏‎ (13 links)
  429. Mooseheart Member‏‎ (13 links)
  430. Babylon Sandstone Member‏‎ (13 links)
  431. Murray Bluff Sandstone Member‏‎ (13 links)
  432. Wise Ridge Coal Member‏‎ (13 links)
  433. Bernadotte Sandstone Member‏‎ (13 links)
  434. New Richmond Sandstone‏‎ (13 links)
  435. Brainard Shale‏‎ (13 links)
  436. Palzo Sandstone Member‏‎ (13 links)
  437. Brush Coal Member‏‎ (13 links)
  438. Reel Limestone Member‏‎ (13 links)
  439. Saverton Shale‏‎ (13 links)
  440. Copperas Creek Sandstone Member‏‎ (13 links)
  441. Farmington Shale Member‏‎ (13 links)
  442. Galum Limestone Member‏‎ (13 links)
  443. Girardeau Limestone‏‎ (13 links)
  444. Gunter Sandstone‏‎ (13 links)
  445. Lovell Member‏‎ (13 links)
  446. St. David Limestone Member‏‎ (13 links)
  447. Misenheimer Shale Member‏‎ (12 links)
  448. Anvil Rock Sandstone Member‏‎ (12 links)
  449. Warsaw Shale‏‎ (12 links)
  450. Backbone Limestone‏‎ (12 links)
  451. Neda Formation‏‎ (12 links)
  452. Wilcox Formation‏‎ (12 links)
  453. Brandon Bridge Member‏‎ (12 links)
  454. Potosi Dolomite‏‎ (12 links)
  455. Chalfin Member‏‎ (12 links)
  456. Schweizer Member‏‎ (12 links)
  457. Elwood Formation‏‎ (12 links)
  458. Wadsworth Formation‏‎ (12 links)
  459. Plaines Member‏‎ (12 links)
  460. Coralville Member‏‎ (12 links)
  461. Davenport Member‏‎ (12 links)
  462. Glen Park Formation‏‎ (12 links)
  463. McClearys Bluff Coal Member‏‎ (12 links)
  464. Prospect Hill Siltstone‏‎ (12 links)
  465. Romeo Member‏‎ (12 links)
  466. Coggan Member‏‎ (12 links)
  467. Ashmore Tongue‏‎ (12 links)
  468. Solon Member‏‎ (12 links)
  469. Spring Grove Member‏‎ (12 links)
  470. Clayton Formation‏‎ (12 links)
  471. Burlington Limestone‏‎ (12 links)
  472. Everton Dolomite‏‎ (12 links)
  473. Search:Cenozoic Erathem‏‎ (12 links)
  474. Morton Tongue‏‎ (12 links)
  475. Robein Member‏‎ (12 links)
  476. Kenwood Member‏‎ (12 links)
  477. State Pond Member‏‎ (12 links)
  478. McCraney Limestone‏‎ (12 links)
  479. Bilyeu Member‏‎ (12 links)
  480. Otis Member‏‎ (12 links)
  481. Manitowoc Member‏‎ (12 links)
  482. Piatt Member‏‎ (12 links)
  483. Marcus Formation‏‎ (12 links)
  484. Birds Member‏‎ (12 links)
  485. Drummond Member‏‎ (12 links)
  486. Fults Member‏‎ (12 links)
  487. Kerton Creek Coal Member‏‎ (12 links)
  488. Markgraf Member‏‎ (12 links)
  489. Troutman Member‏‎ (12 links)
  490. Montrose Chert Member‏‎ (12 links)
  491. Waltersburg Formation‏‎ (12 links)
  492. Blanding Formation‏‎ (12 links)
  493. Rapid Member‏‎ (12 links)
  494. Clear Creek Chert‏‎ (12 links)
  495. Beverly Tongue‏‎ (12 links)
  496. Haeger Member‏‎ (12 links)
  497. Galesville Sandstone‏‎ (12 links)
  498. Two Rivers Member‏‎ (12 links)
  499. Kidd Member‏‎ (12 links)
  500. St. Clair Limestone‏‎ (12 links)

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