Racine Fm, SE Wisconsin, Franklin Quarry - Patzkowsky (Silurian to of the United States)

Where: Wisconsin (42.9° N, 88.0° W: paleocoordinates 25.2° S, 49.5° W)

• coordinate based on nearby landmark

When: Racine Formation, Wenlock to Wenlock (433.4 - 427.4 Ma)

Environment/lithology: reef, buildup or bioherm; lithified wackestone

• The major features of reefs in the Racine Formation include mound-like shapes, massive appearance, abundant fossils, and inclined flank beds. Carbonate mud and smaller bioclasts within reef deposits have been altered to a mosaic of dolomite crystals.

Size class: macrofossils

Primary reference: R. Watkins. 1993. The Silurian (Wenlockian) reef fauna of Southeastern Wisconsin. Palaios 8:325-338 [M. Patzkowsky/Z. Krug]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 13104: authorized by Mark Patzkowsky, entered by Zack Krug on 21.01.2002, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Anthozoa
 Rugosa -
Rugosa sp. 2 horn coral
Rugosa sp. 3 horn coral
Rugosa sp. 4 horn coral
Rugosa sp. 6 horn coral
Rugosa sp. 8 horn coral
Rugosa sp. 9 horn coral
Rugosa sp. 12 horn coral
Rugosa sp. 1 horn coral
Trilobita
 Proetida -
Proetida indet. Fortey and Owens 1975 trilobite
 Phacopida - Encrinuridae
 Phacopida - Cheiruridae
Cheirurus niagarensis Hall 1868 trilobite
 Phacopida - Dalmanitidae
 Phacopida - Phacopidae
 Corynexochida - Illaenidae
Bumastus ioxus Hall 1868 trilobite
 Corynexochida - Styginidae
 Lichida - Lichidae
Arctinurus sp. Castelnau 1843 trilobite
Dicranopeltis sp. Hawle and Corda 1847 trilobite
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
fenestrate
Bryozoa sp. 1 Ehrenberg 1831
ramose
Bryozoa sp. 2 Ehrenberg 1831
ramose
Bryozoa indet. Ehrenberg 1831
laminar
Lingulata
 Lingulida - Discinidae
Orbiculoidea sp. d'Orbigny 1847
Craniata
 Trimerellida - Trimerellidae
 Craniida - Craniidae
Strophomenata
 Strophomenida - Rafinesquinidae
"Leptaena depressa" = Leptaena (Leptaena) depressa
"Leptaena depressa" = Leptaena (Leptaena) depressa Sowerby 1824
 Strophomenida - Sowerbyellidae
Plectodonta sp. Kozlowski 1929
 Strophomenida - Leptestiidae
Leangella sp. Opik 1933
 Strophomenida - Strophodontidae
"Protomegastrophia profunda" = Brachyprion (Protomegastrophia) profunda
"Protomegastrophia profunda" = Brachyprion (Protomegastrophia) profunda Hall 1852
Chileata
 Dictyonellida - Eichwaldiidae
Rhynchonellata
 Orthida - Platystrophiidae
 Orthida - Hesperorthidae
Dolerorthis sp. Schuchert and Cooper 1931
 Orthida - Dicoelosiidae
Dicoelosia biloba Linnaeus 1758
 Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953
 Orthida - Dalmanellidae
 Atrypida - Atrypinidae
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
Plectatrypa sp. Schuchert and Cooper 1930
 Atrypida - Punctatrypidae
 Athyridida - Meristellidae
Meristina sp. Hall 1867
Whitfieldella sp. Hall and Clarke 1893
 Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
 Spiriferida - Delthyrididae
Howellella sp. Kozlowski 1946
 Spiriferida - Cyrtiidae
Striispirifer sp. Cooper and Muir-Wood 1951
Janius nobilis Barrande 1848
Eospirifer radiatus Sowerby 1834
 Rhynchonellida - Hebetoechiidae
Sphaerirhynchia sp. Cooper and Muir-Wood 1951
 Rhynchonellida - Rhynchotrematidae
Stegerhynchus sp. Foerste 1909
 Rhynchonellida - Trigonirhynchiidae
Rhynchotreta sp. Hall 1879
 Pentamerida - Clorindidae
 Pentamerida - Pentameridae
"Apopentamerus racinensis" = Harpidium (Isovella), Capelliniella mira
"Apopentamerus racinensis" = Harpidium (Isovella)
 Pentamerida - Parastrophinidae
Cephalopoda
 Oncocerida - Oncoceratidae
 Oncocerida - Acleistoceratidae
 Discosorida - Phragmoceratidae
 Orthocerida - Orthoceratidae
Michelinoceras sp. Foerste 1932
 Orthocerida - Kionoceratidae
 Orthocerida - Dawsonoceratidae
 Actinocerida - Actinoceratidae
 Dissidocerida - Geisonoceratidae
 Barrandeocerida - Lechritrochoceratidae
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
 Murchisoniina - Murchisoniidae
Murchisonia conradi Hall 1868 snail
Murchisonia laphami Hall 1860 snail
 Murchisoniina -
Eotomarioidea indet. Wenz 1938 snail
 Murchisoniina - Luciellidae
"Pleurotomaria halei" = Prosolarium halei
"Pleurotomaria halei" = Prosolarium halei Hall 1867 snail
 Murchisoniina - Phanerotrematidae
"Pleurotomaria occidens" = Phanerotrema occidens
"Pleurotomaria occidens" = Phanerotrema occidens Hall 1867 snail
 Murchisoniina - Loxonematidae
Loxonema leda Hall 1868 snail
 Murchisoniina - Subulitidae
Fusispira ventricosa Hall 1872 snail
 Euomphalina - Oriostomatidae
"Cyclonema pauper" = Oriostoma pauper
"Cyclonema pauper" = Oriostoma pauper Hall 1867 snail
 Euomphalina - Euomphalidae
"Straparollus mopsus" = Philoxene mopsus
"Straparollus mopsus" = Philoxene mopsus Hall 1868 snail
 Euomphalina - Holopeidae
Holopea guelphensis Billings 1865 snail
 Euomphalina - Platyceratidae
"Cyclonema elevata" = Strophostylus elevatus, Platyceras sp.
"Cyclonema elevata" = Strophostylus elevatus Hall 1868 snail
Platyceras sp. Conrad 1840 snail
 Bellerophontida -
Bellerophontoidea indet. M'Coy 1851 snail
 Bellerophontida - Bucaniidae
"Tremanotus alpheus" = Tremanotus angustata
"Tremanotus alpheus" = Tremanotus angustata Hall 1852 snail
Bivalvia
  -
Bivalvia sp. 2 Linnaeus 1758 clam
free-burrowing
 Cardiiformii -
"Modiomorphoida indet." = Modiomorphida
"Modiomorphoida indet." = Modiomorphida Newell 1969 clam
 Modiomorphida - Modiomorphidae
 Modiomorphida - Cypricardiniidae
 Ostreida - Rhombopteriidae
Rhombopteria sp. Jackson 1890 oyster
 Ostreida - Pterineidae
 Myalinida - Ambonychiidae
Amphicoelia leidyi Hall 1865 clam
Mytilarca acutirostra Hall 1865 clam
 Cyrtodontida - Cyrtodontidae
Rhombifera
 Hemicosmitoida - Caryocrinitidae
 Sphaeronitida - Holocystitidae
"Holocystites alternatus" = Holocystites (Holocystites) alternatus
"Holocystites alternatus" = Holocystites (Holocystites) alternatus Hall 1861
Blastoidea
  -
Crinoidea
 Cyathocrinida - Crotalocrinitidae
 Sagenocrinida - Lecanocrinidae
 Monobathrida - Periechocrinidae
 Monobathrida - Melocrinitidae
 Monobathrida - Marsupiocrinidae
 Monobathrida - Eucalyptocrinitidae
 Diplobathrida - Lampterocrinidae
 Diplobathrida - Rhodocrinitidae