Sardeson Collection, Grand Detour Formation, Illinois and Iowa (Ordovician of the United States)

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

When: Grand Detour Formation, Blackriveran (457.3 - 449.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: limestone

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 23791: authorized by Steven Holland, entered by Tori Hanson on 20.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Craniata
 Craniida - Craniidae
Acanthocrania granulosa, "Acanthocrania setigeria" = Acanthocrania setigera, Petrocrania trentonensis
"Acanthocrania setigeria" = Acanthocrania setigera Hall 1866
[entered as Acanthocrania setigera]
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
Rostricellula minnesotensis
 Orthida - Glyptorthidae
Glyptorthis bellarugosa
 Orthida - Hesperorthidae
Hesperorthis tricenaria
 Orthida - Plaesiomyidae
Campylorthis deflecta
 Orthida - Plectorthidae
Doleroides pervetus
 Orthida - Draboviidae
Pionodema conradi
 Protorthida - Skenidiidae
Skenidioides anthonense
 Atrypida - Protozygidae
"Protozyga nicolleti" = Manespira nicolleti
"Protozyga nicolleti" = Manespira nicolleti Winchell and Schuchert 1892
Strophomenata
 Strophomenida - Furcitellidae
Oepikina minnesotensis, Trigrammaria winchelli
Oepikina minnesotensis Winchell 1881
Trigrammaria winchelli Hall and Clarke 1892
 Strophomenida - Strophomenidae
Strophomena cf. plattinensis
Lingulata
 Lingulida - Discinidae
Orbiculoidea cf. lamellosa
 Lingulida - Trematidae
Trematis huronensis
Trematis huronensis Billings 1865
 Lingulida - Pseudolingulidae
Pseudolingula eva, ? Pseudolingula iowensis
Pseudolingula eva Billings 1861
 Lingulida - Obolidae
Pachyglossella elderi
 Siphonotretida - Siphonotretidae
Schizambon sp.
Schizambon sp. Walcott 1884
Trilobita
 Asaphida - Asaphidae
"Basiliella barrandi" = Basilicus (Basiliella), Isotelus simplex
"Basiliella barrandi" = Basilicus (Basiliella) trilobite
Isotelus simplex Raymond and Narraway 1910 trilobite
 Lichida - Lichidae
Amphilichas sp.
Amphilichas sp. Raymond 1905 trilobite
 Phacopida - Cheiruridae
Ceraurinella templetoni, Ceraurinella scofieldi, Gabriceraurus mifflinensis
Ceraurinella scofieldi Clarke 1897 trilobite
 Phacopida - Pterygometopidae
Sceptaspis lincolnensis
Sceptaspis lincolnensis Branson 1909 trilobite
 Corynexochida - Illaenidae
Thaleops ovata, Illaenus sp., Bumastoides milleri
Thaleops ovata Conrad 1843 trilobite
Illaenus sp. Dalman 1827 trilobite
Bumastoides milleri Billings 1859 trilobite
 Proetida - Bathyuridae
"Raymondites longispinus" = Bathyurus (Raymondites) longispinus
"Raymondites longispinus" = Bathyurus (Raymondites) longispinus Walcott 1876 trilobite