Masters Theses


"The St. Louis Limestone and its equivalent formations crop out from Alaska south to Sonora and from Arizona east to Virginia. The St. Louis, in most cases, is fossiliferous and contains numerous species of foraminifers, echinoderms, bryozoans, molluscans, brachipods, arthropods and coelenterates. Algal mounds and mats are common. The rugose coral fauna of the Middle Mississippian (Meramecian) St. Louis Limestone of southern Calhoun County, Illinois and northern St. Louis County, Missouri was studied to determine first what corals were present and second the validity of the names assigned to the previously described species. It was found that the binomen for the coral Lithostrotion proliferurn Hall 1858 has long been in error and that this species actually belongs to the genus Koninckophyllum Thomson and Nicholson. After careful study of these corals and specimens of L. proliferum from Kentucky and Koninckophyllum arizellum Crickmay 1955, data were compared and the corals found to be conspecific. The name, Koninckophyllum proliferum (Hall), is therefore proposed for this species.

The utility of Koninckophyllum proliferum as an "index" fossil within the formation in this area was found to be nonexistent due to its broad vertical range.

The environment of deposition is postulated as a warm shallow sea with frequent but slight undulations of both sea floor and neighboring landmass to allow for argillaceous sediments to accumulate in thin layers in an otherwise totally limestone sequence"--Abstract, page ii.


Spreng, Alfred C., 1923-2012

Committee Member(s)

Beveridge, Thomas R. (Thomas Robinson), 1918-1978
Gale, Nord L.


Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geology


V. H. McNutt Memorial Foundation


University of Missouri--Rolla

Publication Date



vii, 67 pages

Note about bibliography

Includes bibliographical references (pages 39-45).

Geographic Coverage

Calhoun County (Ill.)
Saint Louis County (Mo.)


© 1973 William Earl Collins, All rights reserved.

Document Type

Thesis - Open Access

File Type




Subject Headings

Limestone -- Calhoun County (Ill.)
Limestone -- Saint Louis County (Mo.)
Corals, Fossil

Thesis Number

T 2910

Print OCLC #


Electronic OCLC #


Included in

Geology Commons