PBDB Collection

Sardeson Collection, Dunleith Formation, Fairplay Member, Illinois and Iowa (Ordovician of the United States)

Where: Illinois, Iowa (42.0° N, 90.5° W: paleocoordinates 21.3° S, 63.6° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Belodina confluens conodont zone, Fairplay Member (Dunleith Formation), Shermanian (457.3 - 449.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: shale and limestone

• Environmental call by T. Hanson.

• Shale and laminated limestone. Lithology from C. O. Leverson, A. J. Gerk, R. E. Sloan, & L. A. Bisagno. General section of the Middle and Late Ordovician strata of Northeastern Iowa, Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35, p.25-39. Edited by R. E. Sloan.

Size class: macrofossils

Primary reference: J. A. Catalani. 1987. Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area. In R. E. Sloan (ed.), Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 187-189 [S. Holland/T. Hanson/S. Bruning]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 23801: authorized by Steven Holland, entered by Tori Hanson on 21.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Rhynchonellata
Atrypida - Anazygidae	"Zygospira recurvirostris" = Anazyga recurvirostra "Zygospira recurvirostris" = Anazyga recurvirostra Hall 1847
Orthida - Draboviidae	? Diorthelasma weissi ? Diorthelasma weissi Rice 1987
Orthida - Dalmanellidae	Paucicrura rogata Paucicrura rogata Sardeson 1892
Orthida - Platystrophiidae	Platystrophia trentonensis, Platystrophia amoena Platystrophia trentonensis McEwan 1919 Platystrophia amoena McEwan 1919
Orthida - Plectorthidae	Plectorthis plicatella Plectorthis plicatella Hall 1847
Orthida - Plaesiomyidae	Dinorthis pectinella, "Plaesiomys meedsi" = Dinorthis meedsi Dinorthis pectinella Emmons 1842 "Plaesiomys meedsi" = Dinorthis meedsi Winchell and Schuchert 1892
Orthida - Glyptorthidae	Glyptorthis bellarugosa Glyptorthis bellarugosa Conrad 1843
Orthida - Hesperorthidae	Hesperorthis tricenaria Hesperorthis tricenaria Conrad 1843
Protorthida - Skenidiidae	Skenidioides anthonense Skenidioides anthonense Sardeson 1894
Pentamerida - Parastrophinidae	Parastrophina bernensis Parastrophina bernensis
Rhynchonellida - Rhynchotrematidae	Rhynchotrema wisconsinense, Rhynchotrema laticosta Rhynchotrema wisconsinense Rhynchotrema laticosta
Strophomenata
Billingsellida - Clitambonitidae	Vellamo americana Vellamo americana
Strophomenida - Sowerbyellidae	Sowerbyella minnesotensis Sowerbyella minnesotensis Sardeson 1892
Strophomenida - Glyptomenidae	"Holtedahlina emaciata" = Pionomena emaciata "Holtedahlina emaciata" = Pionomena emaciata Winchell and Schuchert 1892
Strophomenida - Strophomenidae	Strophomena billingsi Strophomena billingsi Winchell and Schuchert 1893
Strophomenida - Furcitellidae	Furcitella scofieldi Furcitella scofieldi Winchell and Schuchert 1892
Strophomenida - Rafinesquinidae	Rafinesquina trentonensis Rafinesquina trentonensis Hall 1847
Lingulata
Lingulida - Trematidae	Schizocrania filosa Schizocrania filosa
Lingulida - Pseudolingulidae	Pseudolingula iowensis Pseudolingula iowensis Owen 1844
Lingulida - Obolidae	Pachyglossella elderi, Pachyglossella riciniformis Pachyglossella elderi Pachyglossella riciniformis
Craniata
Craniida - Craniidae	Petrocrania trentonensis, Acanthocrania granulosa, "Acanthocrania setigeria" = Acanthocrania setigera Petrocrania trentonensis Acanthocrania granulosa [entered as Acanthcrania granulosa] "Acanthocrania setigeria" = Acanthocrania setigera Hall 1866 [entered as Acanthocrania setigera]
Craniopsida - Craniopsidae	Craniops minor Craniops minor
Trilobita
Asaphida - Asaphidae	Isotelus gigas Isotelus gigas Dekay 1824 trilobite
Corynexochida - Illaenidae	Illaenus sp., Bumastoides porrectus Illaenus sp. Dalman 1827 trilobite Bumastoides porrectus trilobite
Phacopida - Pterygometopidae	Sceptaspis lincolnensis Sceptaspis lincolnensis Branson 1909 trilobite
Phacopida - Calymenidae	"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria "Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria Conrad 1841 trilobite
Phacopida - Encrinuridae	"Encrinuroides vigilans" = Erratencrinurus vigilans "Encrinuroides vigilans" = Erratencrinurus vigilans Hall 1847 trilobite
Phacopida - Cheiruridae	Ceraurus pleurexanthemus Ceraurus pleurexanthemus Green 1832 trilobite