Kimmswick Limestone
Stratigraphic range: Sandbian-Katian (Trentonian-Shermanian)
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Fossil from the Kimmswick Limestone (Missouri)
TypeFormation
UnderliesCape Limestone, Maquoketa Group[1] or the Fernvale Limestone in Arkansas[2]
OverliesDecorah Shale[1] or Plattin Limestone[2]
Lithology
PrimaryLimestone
OtherSandstone, dolomite[2]
Location
Coordinates39°12′N 90°48′W / 39.2°N 90.8°W / 39.2; -90.8
Approximate paleocoordinates23°06′S 66°00′W / 23.1°S 66.0°W / -23.1; -66.0
RegionArkansas, Illinois, Missouri
Country United States
Type section
Named forKimmswick, Jefferson County, Missouri[3]
Named byEdward Oscar Ulrich
Year defined1904[1]
Kimmswick Limestone is located in the United States
Kimmswick Limestone
Kimmswick Limestone (the United States)
Kimmswick Limestone is located in Missouri
Kimmswick Limestone
Kimmswick Limestone (Missouri)

The Kimmswick Limestone is an Ordovician geologic formation in Arkansas, Illinois and Missouri. Fossils occurring in the Kimmswick include corals, bryozoans, brachiopods, conodonts,[4] trilobites, crinoids and mollusks.[2]

Fossil content

The following fossils have been reported from the formation:[5]

Conodonts

A. unicostatus[4]
  • Acontiodus
A. alveolaris[4]
  • Ambalodus
A. elegans[4]
A. pulcher[4]
A. triangularis[4]
  • Aphelognathus
A. abrupta[4]
A. polita[4]
  • Belodina
B. compressa[4]
C. delicatus[4]
C. flexuosus[4]
  • Dichognathus
D. brevis[4]
D. scotti[4]
D. typica[4]
  • Distacodus
D. falcatus[4]
  • Drepanodus
D. homocurvatus[4]
D. suberectus[4]
  • Eoligonodina
E. delicata[4]
  • Icriodella
I. superba[4]
  • Keislognathus
K. gracilis[4]
  • Oistodus
O. abundans[4]
O. inclinatus[4]
O. parallelus[4]
O. concinna[4]
P. compressus[4]
P. ellisoni[4]
P. fornicalis[4]
P. gracilis[4]
P. simplex[4]
  • Phragmodus
P. undatus[4]
  • Prioniodina
P. furcata[4]
  • Rhynchognathodus
R. divaricatus[4]
R. typicus[4]
  • Sagittodontus
S. robustus[4]
  • Scolopodus
S. insculptus[4]
  • Tetraprioniodus
T. superbus[4]
  • Trichonodella
T. exacta[4]
  • Zygognathus
Z. curvata[4]
Z. mira[4]

Trilobites

  • Eobronteus
E. slocomi[6]

See also

References

  1. 1 2 3 Thompson, Thomas L., 2001, Lexicon of Stratigraphic Nomenclature in Missouri, Missouri Department of Natural Resources, Division of Geology and Land Survey, Report of Investigation Number 73, p 153
  2. 1 2 3 4 "Arkansas Geologic Survey". Archived from the original on 2014-07-14. Retrieved 2014-08-11.
  3. ↑ Ulrich, E. (1904). "The quarrying industry of Missouri". Missouri Bureau of Geology and Mines. 2nd Series. 2: 111.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 Craig, William (1968). The stratigraphy and conodont paleontology of Ordovician and Silurian strata, Batesville district, Independence and Izard counties, Arkansas (PhD). The University of Texas.
  5. ↑ Kimmswick Limestone at Fossilworks.org
  6. ↑ Sinclair, G. Winston (1949). "The Ordovician trilobite Eobronteus". Journal of Paleontology. 23 (1): 48–50, pls. 12, 13.


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