Where: Iowa (42.0° N, 91.0° W: paleocoordinates 23.1° S, 53.5° W)
• coordinate based on political unit
• basin-level geographic resolution
When: Scotch Grove Formation, Wenlock (433.4 - 427.4 Ma)
• Apparently restricted in Iowa to units of mid-Wenlockian age. Waubeek and upper Buck Creek Quarry Members of the upper Scotch Grove Formation.
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal ramp; dolomitic, shelly/skeletal wackestone and dolomitic, shelly/skeletal lime mudstone
•
•SEP environmental call based on given description and same vol. page 807.
Collection methods: See Frest et al. (1999--PBDB ref. 4379) for echinoderms of Dimerocrinites-Hedeina Community. I have combined two lists with abundances in table 50.6, as well as additional taxa mentioned in text.
Primary reference: B. J. Witzke and M. E. Johnson. 1999. Silurian brachiopod and related benthic communities from carbonate platform and mound environments of Iowa and surrounding areas. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 806-840 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 25019: authorized by Michael Foote, entered by Michael Foote on 26.08.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
| |
Anthozoa | |
| |
Cystiphyllidae indet. Milne-Edwards and Haime 1850 horn coral | |
Porpites sp. Schlotheim 1820 horn coral | |
Streptelasmatidae indet. Nicholson 1889 horn coral | |
Arachnophyllum sp. Dana 1846 horn coral | |
Tabulata indet. tabulate coral | |
Favositidae indet. Dana 1846 tabulate coral | |
Alveolitidae indet. Duncan 1872 tabulate coral | |
Syringopora sp. Goldfuss 1826 tabulate coral | |
Heliolites sp. Dana 1846 tabulate coral | |
Halysites sp. von Waldheim 1813 tabulate coral | |
Blastoidea | |
Lysocystites sp. blastoid | |
Crinoidea | |
Crinoidea indet. Miller 1821 Sea lily | |
Myelodactylus sp. Hall 1852 Sea lily | |
Pisocrinus sp. de Koninck 1858 Sea lily | |
Dimerocrinites (Dimerocrinites) sp. Phillips 1839 Sea lily | |
Marsupiocrinidae indet. Bronn 1855 Sea lily
Manticrinus sp. Ausich 1986 Sea lily | |
? Carpocrinus sp. Muller 1840 Sea lily | |
Eucalyptocrinites sp. Goldfuss 1831 Sea lily | |
Platycrinitacea indet. Austin and Austin 1843 Sea lily | |
? Lyonicrinus sp. Springer 1926 Sea lily | |
Hallicystis sp. Jaekel 1899 | |
Trilobita | |
Trilobita indet. Walch 1771 trilobite | |
Illaenidae indet. Hawle and Corda 1847 trilobite
Bumastus sp. Murchison 1839 trilobite | |
Dalmanites sp. Barrande 1852 trilobite | |
Cheiruridae indet. Hawle and Corda 1847 trilobite
Cheirurus sp. Beyrich 1845 trilobite | |
Encrinuridae indet. Angelin 1854 trilobite
Encrinurus sp. Emmrich 1844 trilobite | |
Calymene sp. Brongniart 1822 trilobite | |
Proetus sp. Steininger 1831 trilobite | |
Brachiopoda | |
Brachiopoda indet. Cuvier 1805 | |
Chileata | |
"Dictyonella sp." = Eodictyonella
"Dictyonella sp." = Eodictyonella Wright 1994 | |
Strophomenata | |
Eoplectodonta sp. Kozlowski 1929 | |
Stropheodontidae indet. Caster 1939 | |
"Leptaenidae indet." = Leptaeninae Hall and Clarke 1894
Leptaena sp. Dalman 1828 | |
| |
Pentlandina sp. Bancroft 1949 | |
"Coolinia sp." = Fardenia (Coolinia)
| |
Streptis sp. Davidson 1881 | |
Rhynchonellata | |
Plectatrypa sp. Schuchert and Cooper 1930
Atrypa sp. Dalman 1828 | |
Rhynchonellida indet. Kuhn 1949 | |
Rhynchotreta sp. Hall 1879 | |
Ferganella sp. Nikiforova 1937 | |
Camerella sp. Billings 1859 | |
Gypidulidae indet. Schuchert and Le Vene 1929 | |
? Coelospira sp. Hall 1863 | |
Meristina sp. Hall 1867
Whitfieldella sp. Hall and Clarke 1893 | |
Spiriferida indet., "Cyrtiacea indet." = Cyrtioidea
Spiriferida indet. Waagen 1883
"Cyrtiacea indet." = Cyrtioidea Frederiks 1924 | |
Cyrtia sp. Dalman 1828
Hedeina sp. Boucot 1957 | |
? Delthyris sp. Dalman 1828 | |
| |
Dalejina spp. Havlicek 1953 | |
Craniata | |
Craniidae indet. Menke 1828 | |
Stenolaemata | |
| |
Fenestellidae indet. King 1850 | |
| |
Cephalopoda | |
Dawsonoceras sp. Hyatt 1884 | |
Bivalvia | |
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam | |
? Actinopteria sp. Hall 1884 oyster | |
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
? Phanerotrema sp. Fischer 1885 snail | |
Oriostoma sp. Munier-Chalmas 1876 snail | |
Platyostoma sp. Conrad 1842 snail
Platyceras sp. Conrad 1840 snail | |
Raphistomina sp. Ulrich and Scofield 1897 snail | |
? Poleumita sp. Clarke and Ruedemann 1903 snail |