Carboniferous Basins of Southwestern Missouri (Carboniferous of the United States)

Where: Missouri (37.1° N, 94.6° W: paleocoordinates 14.4° S, 39.1° W)

• coordinate based on political unit

When: Mississippian (358.9 - 323.2 Ma)

Environment/lithology: shale

• McClelland's Shaft- the basin affects surface topography as a slight sink. Occurs in loose layers of chert brecciated in situ and alternate limestone strata. The bottom of the depression is covered by loose chert. The shales, in a lenticular body, of about 10 feet in thickness very convex below and slightly concave above. At this level the basin iss about thrity feet in diameter.
• Plant materials come from light ash-colored somewhat arenaceous shales with minute particles of mica. Portions are massive, sandy and darker. Black coaly shales.

Preservation: adpression, replaced with pyrite, replaced with other

Collection methods: Collection is from 14 boxes collected by Dr. WP Jenney fot eh USGS in the fall of 1889 during a study of lead and zinc deposits in Missouri.

Primary reference: D. White. 1893. Flora of the Outlying Carboniferous Basins of Southwestern Missouri. United States Geological Survey (98)1-137 [R. Gastaldo/J. Allen]more details

PaleoDB collection 12122: authorized by Robert Gastaldo, entered by Jonathan Allen on 09.10.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

 Naviculales - Pinnulariaceae
Pinnularia sp. Ehrenberg 1843 diatom
  - Sphenopteridae
 Equisetales - Equisetidae
 Filicinae -
"Pecopteris dentata" = Prepecopteris dentata Brongniart 1835
  - Sigillariaceae
Sigillaria sp. Brongniart 1822
 Cordaitales -
 Sphenophyllales -
 Radiatopses - Medullosaceae
 Cordaitanthales -