Rockford Limestone Co. Mine, Louisville Ls. (Silurian of the United States)

Where: Mercer County, Ohio (40.5° N, 84.6° W: paleocoordinates 26.0° S, 51.4° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Louisville Limestone Formation, Niagaran (443.4 - 422.9 Ma)

• "M. Sil."

Environment/lithology: reef, buildup or bioherm; dolomite

• "dolomite and ls, reefy. Fort Wayne Bank. reef? ~BA3"

Size class: macrofossils

Primary reference: R. H. Shaver. 1974. Silurian reefs of northern Indiana: reef and interreef macrofaunas. AAPG Bulletin 58:934-956 [M. Uhen/J. Ju/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 475: authorized by Jack Sepkoski, entered by Mike Sommers on 15.12.1998, edited by Alycia Stigall

Creative Commons license: CC BY (attribution)

Taxonomic list

• "R.H. Shaver, 1974. Silurian reefs of northern Indiana: reef and interreef macrofaunas. AAPG Bull. 58:934-956"
Rhynchonellata
 Athyridida - Meristellidae
Whitfieldella sp. Hall and Clarke 1893
 Spiriferida - Spiriferidae
Spirifer sp. Sowerby 1818
 Pentamerida - Gypidulidae
Gypidula sp. Hall 1867
 Pentamerida - Subrianidae
Conchidium sp. Oehlert 1887
4 species
 Pentamerida - Pentameridae
Pentamerus sp. Sowerby 1813
2 species
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
 Rhynchonellida - Trigonirhynchiidae
Rhynchotreta sp. Hall 1879
 Rhynchonellida - Camarotoechiidae
Camarotoechia sp. Hall and Clarke 1893
 Orthida - Schizophoriidae
Schizophoria impressa Hall 1843
impressa or iowensis
Craniata
 Trimerellida - Trimerellidae
Trimerella sp. Billings 1862
Gastropoda
 Euomphalina - Euomphalidae
Euomphalus sp. Sowerby 1814 snail
 Euomphalina - Platyceratidae
Strophostylus sp. Hall 1859 snail
"Diaphorostoma sp." = Platyceras (Platyostoma) Conrad 1842 snail
 Bellerophontida - Bucaniidae
Tremanotus sp. Hall 1868 snail
Cephalopoda
 Orthocerida - Kionoceratidae
Kionoceras sp. Hyatt 1884
2 species
 Discosorida - Phragmoceratidae
Phragmoceras sp. Broderip 1839
 Barrandeocerida - Lechritrochoceratidae
Lechritrochoceras sp. Foerste 1926
 Actinocerida - Armenoceratidae
Elrodoceras sp. Foerste 1924
 Oncocerida - Hemiphragmoceratidae
Hexameroceras sp. Hyatt 1884
 Oncocerida - Oncoceratidae
Maelonoceras sp. Hyatt 1884
Stenolaemata
 Fenestrida - Fenestellidae
Fenestella sp. Lonsdale 1839
 Fenestrata -
 Rhombifera - Caryocrinitidae
Caryocrinites sp. Say 1825
3 species
Crinoidea
 Monobathrida - Marsupiocrinidae
Marsupiocrinus sp. Morris 1843 Sea lily
originally entered as "Marsipiocrinus sp."
 Monobathrida - Eucalyptocrinitidae
Eucalyptocrinites sp. Goldfuss 1831 Sea lily
Diploporita
 Sphaeronitida - Holocystitidae
Megacystites sp. Frest et al. 2011
Anthozoa
 Favositida - Favositidae
Favosites sp. Lamarck 1816 tabulate coral
 Favositida - Coenitidae
Coenites sp. Eichwald 1829 tabulate coral
 Heliolitida - Halysitidae
Halysites sp. von Waldheim 1813 tabulate coral
 Heliolitida - Heliolitidae
Heliolites sp. Dana 1846 tabulate coral
 Stauriida - Lithostrotionidae
Diphyphyllum sp. Lonsdale 1845 horn coral