Where: Iowa (42.0° N, 91.0° W: paleocoordinates 23.1° S, 53.5° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Buck Creek Quarry Member (Scotch Grove Formation), Wenlock (433.4 - 427.4 Ma)
• "probable early Wenlockian age" "...these collections were derived from residual silicified geests, and hence represent accumulations from a stratigraphic interval of unknown thickness. Nevertheless, the coralline fauna is also known from subjacent dolomite strata at the type locality, and the co-occurrence of diverse rugosans with Pentameroides and Costistricklandia is verified from individual slabs in the geests bearing both brachiopods and abundant corals as well as from subsurface core penetrations."
• member-level stratigraphic resolution
Environment/lithology: deep subtidal ramp; shelly/skeletal wackestone and shelly/skeletal packstone
•
•SEP environmental call based on given description and same vol. page 807.
Preservation: replaced with silica
Collection methods: I have combined two localities with abundance data in table 50.15.
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 25044: authorized by Michael Foote, entered by Michael Foote on 26.08.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
| |
Goniophyllum pyramidale horn coral | |
Cystiphyllum sp. Lonsdale 1839 horn coral | |
Porpites sp. Schlotheim 1820 horn coral | |
Diplophyllum sp. Hall 1851 horn coral | |
| |
Pycnostylus sp. Whiteaves 1884 horn coral | |
Streptelasmatidae indet. Nicholson 1889 horn coral
Asthenophyllum sp. Grubbs 1939 horn coral | |
Entelophyllum sp. Wedekind 1927 horn coral | |
Arachnophyllum sp. Dana 1846 horn coral
Chonophyllum sp. Milne-Edwards and Haime 1850 horn coral | |
Ptychophyllum sp. Milne-Edwards and Haime 1850 horn coral | |
| |
Syringopora sp. Goldfuss 1826 tabulate coral | |
Auloporidae sp. Milne-Edwards and Haime 1850 tabulate coral | |
Halysites sp. von Waldheim 1813 tabulate coral | |
Plasmopora sp. Milne-Edwards and Haime 1849 tabulate coral | |
Heliolites sp. Dana 1846 tabulate coral | |
Striatopora sp. Hall 1851 tabulate coral | |
Favosites sp. Lamarck 1816 tabulate coral | |
Coenites sp. Eichwald 1829 tabulate coral | |
Alveolites sp. Lamarck 1801 tabulate coral | |
Stromatoporoidea | |
Stromatoporoidea indet. stromatoporoid sponge | |
Stromatopora sp. Goldfuss 1826 stromatoporoid sponge | |
Clathrodictyon sp. Nicholson and Murie 1878 stromatoporoid sponge | |
Crinoidea | |
Myelodactylus sp. Hall 1852 Sea lily | |
Pisocrinus sp. de Koninck 1858 Sea lily | |
Thalamocrinus sp. Miller and Gurley 1895 Sea lily | |
Petalocrinus mirabilis Sea lily | |
Trilobita | |
Encrinurus sp. Emmrich 1844 trilobite | |
Calymene sp. Brongniart 1822 trilobite | |
Stenopareia sp. Holm 1886 trilobite | |
Stenolaemata | |
| |
Fenestellidae indet. King 1850 | |
Rhynchonellata | |
Orthida indet. Schuchert and Cooper 1932 | |
Ptychopleurella cf. bouchardi Davidson 1847
Dolerorthis sp. Schuchert and Cooper 1931 | |
Dicoelosia sp. King 1850 | |
Resserella sp. Bancroft 1928 | |
Spiriferida indet. Waagen 1883 | |
Ferganella sp. Nikiforova 1937 | |
| |
"Callipentamerus corrugatus" = Pentameroides (Callipentamerus), Pentameroides subrectus
"Callipentamerus corrugatus" = Pentameroides (Callipentamerus)
Pentameroides subrectus Hall and Clarke 1892 | |
| |
Strophomenata | |
Strophomenida indet. Opik 1934 | |
Leptaena sp. Dalman 1828 | |
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
Cephalopoda | |
Nautiloidea indet. Agassiz 1847 nautiloid |