Maysvillian Stage
Chronostratigraphy: Paleozoic Erathem >>Ordovician System >>Cincinnatian Series >>Maysvillian Stage
Allostratigraphy: Tippecanoe Sequence
Primary source
Willman, H. B., Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, and Jack A. Simon, 1975, Handbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.
Contributing author(s)
H. B. Willman and T. C. Buschbach
Name
Original description
The Maysvillian Stage of the Cincinnatian Series (Foerste, 1905, p. 150; Twenhofel et al., 1954, chart).
Derivation
Named for Maysville, Kentucky.
Other names
History/background
Type section
Type location
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
The Maysvillian Stage overlies the Edenian Stage of the Cincinnatian Series.
Extent and thickness
Lithology
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
In Illinois the Maysvillian Stage consists of strata in the upper part of the Scales Formation, including the Upper Depauperate Zone and the overlying argillaceous limestone beds that contain Isotelus in abundance. The Girardeau Limestone in the extreme southwestern part of Illinois is approximately at this position, but its relation to the Upper Depauperate Zone is not known. Its fauna has long been considered to be more closely related to Silurian than to Ordovician faunas (Savage, 1917), and it therefore probably is late Richmondian in age.
Age and correlation
Environments of deposition
Economic importance
Remarks
References
FOERSTE, A. F., 1905, Classification of the Ordovician rocks of Ohio and Indiana: Science, v. 22, p. 149-152.
SAVAGE, T. E., 1917, Thebes sandstone and Orchard Creek shale and their faunas in Illinois: Illinois Academy of Science Transactions, v. 10, p. 261-275.
TWENHOFEL, W. H., et al., 1954, Correlation of the Ordovician formations of North America: Geological Society of America Bulletin, v. 65, p. 247-298.
ISGS Codes
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