The Dutchtown Formation is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period. List of fossiliferous stratigraphic...
1 KB (50 words) - 23:55, 2 July 2022
Pope Mega Group (redirect from Tar Springs Formation)
Kinkaid formation to the west. Mt. Pleasant Sandstone, Bristow Sandstone, and Siberia Limestone. The Siberia is a thin tongue of the Menard formation. This...
8 KB (653 words) - 13:04, 8 July 2024
Hunton Megagroup (redirect from Moccasin Springs Formation)
The Hunton Megagroup also Hunton Super Group, Hunton Group, Hunton Formation and Hunton Limestone is predominantly composed of carbonate rock, deposited...
14 KB (1,196 words) - 08:20, 14 September 2024
Knox Supergroup (redirect from Chepultepec Formation)
The Knox Supergroup, also known as the Knox Group and the Knox Formation, is a widespread geologic group in the Southeastern United States. The age is...
15 KB (1,191 words) - 15:18, 30 August 2024
St. Peter Sandstone (redirect from St. Peter Formation)
The St. Peter Sandstone is an Ordovician geological formation. It belongs to the Chazyan stage of the Champlainian series in North American regional stratigraphy...
6 KB (547 words) - 19:53, 20 August 2024
can be found in the formation. Edwardsville Formation at the Indiana Geological Survey Crinoids from the Edwardsville Formation (Lower Mississippian)...
2 KB (65 words) - 19:49, 3 September 2024
Carbondale Group (redirect from Petersburg Formation)
use. The Petersburg formation also contains sandstone members that are used as aquifers. The Linton Formation is a geologic formation in Indiana. It is...
4 KB (300 words) - 14:02, 30 April 2024
The Paoli Formation, Paoli Limestone, or Paoli Chert is a geologic formation in Indiana, Illinois, Kentucky and Missouri. This formation contains members...
3 KB (176 words) - 23:11, 28 February 2024
Muscatatuck Group (redirect from Beechwood Formation)
underlies the Antrim Shale. The North Vernon Limestone is a geologic formation in Indiana. Also called the Sellersburg Limestone, this term however is...
4 KB (221 words) - 14:31, 31 July 2024
Buffalo Wallow Group (redirect from Branchville Formation)
equivalent to the Upper Pope Group as the two share some formations. However many of the formations in the Upper Pope pinch out and are not present in the...
4 KB (300 words) - 02:11, 6 February 2024
The Davis Formation is a geologic formation in Indiana and Missouri. It preserves fossils dating back to the Cambrian period. Paleontology portal List...
3 KB (124 words) - 11:19, 22 August 2024
The Hardinsburg Formation is a geologic formation in Illinois. It preserves fossils dating back to the Carboniferous period. List of fossiliferous stratigraphic...
2 KB (52 words) - 03:14, 12 July 2024
The Franconia Formation is a geologic formation in the upper mid-western United States, with outcroppings found in Illinois, Indiana, Iowa, Michigan,...
3 KB (199 words) - 11:27, 22 August 2024
The Eau Claire Formation is a geologic formation in the north central United States. It preserves trilobite fossils from the Cambrian Period. Paleontology...
3 KB (94 words) - 11:35, 22 August 2024
The Muldraugh Formation is a geological formation in Indiana. It preserves fossils dating back to the Carboniferous period. List of fossiliferous stratigraphic...
1 KB (44 words) - 21:02, 26 December 2022
Trenton Group (redirect from Trenton Formation)
Wabash Formation Waldron Shale O Brainard Shale Dillsboro Formation Dutchtown Formation Everton Dolomite Fort Atkinson Limestone Joachim Formation Kope...
3 KB (137 words) - 06:23, 9 February 2024
Munising Group (redirect from Kerbal Formation)
The Munising Group or Formation is a 1,700 feet (520 m) thick, white to light grey Cambrian sedimentary unit that crops out in Michigan and (to a lesser...
10 KB (853 words) - 14:19, 3 September 2024
Harmony Group is located in the State of Indiana. It is made up of three formations, the Grassy Knob Chert, the Backbone Limestone and Clear Creek Chert....
3 KB (282 words) - 18:01, 7 March 2024
its northernmost reaches where it grades in to the Joliet and Racine Formations it is about 150' thick. The St. Clair is composed of course calcite grains...
10 KB (478 words) - 02:04, 11 March 2024
The Dillsboro Formation is a geologic formation in Ohio. It preserves fossils dating back to the Ordovician period. Paleontology portal List of fossiliferous...
1 KB (46 words) - 23:37, 2 July 2022
The Shelburn Formation is a geologic formation in Indiana. It preserves fossils dating back to the Carboniferous period. Earth sciences portal Indiana...
2 KB (51 words) - 18:00, 13 February 2024
Black River Group (redirect from Lowville Formation)
areas where this Geologic Unit thins it is also called the Black River Formation (undifferentiated). One example of this is over the Cincinnati Arch and...
8 KB (710 words) - 21:00, 1 September 2024
The Ramp Creek Formation is a geologic formation in Kentucky. It preserves fossils dating back to the Carboniferous period. List of fossiliferous stratigraphic...
1 KB (45 words) - 07:20, 3 July 2022
The Elwren Formation is a geologic formation in Kentucky. It preserves fossils dating back to the Carboniferous period. List of fossiliferous stratigraphic...
1 KB (44 words) - 00:27, 3 July 2022
The Bond Formation is a geologic formation in Illinois, Kentucky and Indiana. It preserves fossils dating back to the Carboniferous period. List of fossiliferous...
2 KB (47 words) - 21:32, 2 July 2022
Everton Dolomite (category Midwestern United States geologic formation stubs)
The Everton Dolomite is a geologic formation in North America. Named after Everton, Arkansas, it is subsurface in southwestern Illinois and is exposed...
1 KB (53 words) - 17:54, 11 August 2024
The Mattoon Formation is a geologic formation in Illinois. It preserves fossils dating back to the Carboniferous period. List of fossiliferous stratigraphic...
1 KB (38 words) - 04:52, 28 March 2022
The Pecatonica Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period. List of fossiliferous stratigraphic...
1 KB (44 words) - 06:37, 3 July 2022
Antrim Shale (category Geologic formations of Michigan)
The Antrim Shale is a formation of Upper Devonian age in the Michigan Basin, in the US state of Michigan, and extending into Ohio, Indiana and Wisconsin...
6 KB (585 words) - 07:15, 10 November 2022
The Kope Formation is one of the three component bedrock formations of the Maquoketa Group that primarily consists of shale (75%) with some limestone (25%)...
8 KB (755 words) - 12:57, 4 September 2023