Fossil coral Halysites louisvillensis

Title

Fossil coral Halysites louisvillensis

Subject

Corals, Fossil

Description

Halysites louisvillensis (apparent junior synonym of Halysites nitidus) from the Louisville Limestone (upper Middle Silurian to lower Upper Silurian) of Jefferson County, Kentucky. This colony has been silicified - the original skeleton was composed of calcium carbonate (CaCO3). (Falls of the Ohio State Park collection, Clarksville, Indiana, USA)

The halysitids are a group of extinct, Paleozoic-aged colonial corals. They are readily identifiable - their corallites are linked end-to-end in a distinctive pattern resembling chains (hence the common name “chain corals”). Halysitids are one of the several families of Paleozoic tabulate corals. They were an important reef-building component in the Silurian throughout the world. They occur in shallow-water marine carbonate facies.

Creator

St. John, James

Source

Falls of the Ohio State Park collection, Clarksville, Indiana

Date

2009

Rights

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Original Format

Photograph

Physical Dimensions

2,524 × 1,998 pixels

Files

Halysites_louisvillensis_fossil_coral,_Jefferson_County,_Kentucky.jpg

Citation

St. John, James, “Fossil coral Halysites louisvillensis,” SCRC Virtual Museum at Southern Illinois University's Morris Library, accessed July 5, 2022, https://scrcexhibits.omeka.net/items/show/793.

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