Wassonville Fm., southeastern Iowa (Carboniferous of the United States)

Where: Iowa (41.6° N, 91.3° W: paleocoordinates 19.8° S, 35.9° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Wassonville Formation, Tournaisian (358.9 - 346.7 Ma)

• Laudon (1931) placed the Wassonville Member in the Hampton Formation. The Wassonville has since been given formation status, and the Hampton is o longer recognized. See Woodson, 1989, An excursion to the historic Gilmore City quarries, Geol. Soc. of Iowa Guidebook 50.

• formation-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, cherty/siliceous dolomite and packstone

Primary reference: L. R. Laudon. 1931. The Stratigraphy of the Kinderhook Series of Iowa. Iowa Geological Survey 35:333-452 [A. Miller/A. Webber/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 3309: authorized by Arnold Miller, entered by Andrew Webber on 29.07.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• This list has been added to by Witzke et al., 1990, Stratigraphy and paleoenvironments of Mississippian Strata in Keokuk and Washington Counties, southeast Iowa, Iowa Dept. of Natural Resources, Guidebook Series No. 10.
unclassified
  -
Trilobita
 Aulacopleurida - Brachymetopidae
 Proetida - Proetidae
Proetus sp. Steininger 1831 trilobite
Breviphillipsia sp. Hessler 1963 trilobite
Strophomenata
 Productida - Araksalosiidae
"Productella concentrica" = Chonetipustula concentrica
"Productella concentrica" = Chonetipustula concentrica Hall 1857
 Productida - Productidae
 Productida - Monticuliferidae
 Productida - Anopliidae
 Productida - Rugosochonetidae
 Productida - Chonetidae
Chonetes illinoisensis Worthen 1860
Chonetes logani Norwood and Pratten 1855
 Orthotetida - Schuchertellidae
 Orthotetida - Pulsiidae
 Strophomenida - Rafinesquinidae
"Leptaena analoga" = Leptagonia analoga
"Leptaena analoga" = Leptagonia analoga Phillips 1836
Rhynchonellata
 Athyridida - Retziidae
 Athyridida - Nucleospiridae
 Athyridida - Athyrididae
Cleiothyridina sp. Buckman 1906
 Terebratulida - Cranaenidae
 Terebratulida - Beecheriidae
"Beecheria chouteauensis" = Beecheria chouteauensis, "Dielasma chouteauensis" = Beecheria chouteauensis
"Beecheria chouteauensis" = Beecheria chouteauensis Weller 1914
"Dielasma chouteauensis" = Beecheria chouteauensis Weller 1914
 Spiriferinida - Spiriferinidae
 Spiriferinida - Punctospiriferidae
Punctospirifer sp. North 1920
 Spiriferinida - Syringothyrididae
 Spiriferida - Strophopleuridae
? Calvustrigis sp.
originally entered as "Calvustrigus? sp."
 Spiriferida - Spiriferidae
 Spiriferida - Brachythyrididae
Brachythyris cf. burlingtonensis
originally entered as "Brachythyris cf. burlingtonensis"
 Spiriferida - Reticulariidae
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Rhynchoporidae
 Rhynchonellida - Camarotoechiidae
 Orthida - Schizophoriidae
 Orthida - Rhipidomellidae
Rostroconchia
  -
Conocardium sp. Bronn 1835
Bivalvia
 Cyrtodontida - Cardiolidae
"Cardiopsis radiata" = Cardiola lyoni
"Cardiopsis radiata" = Cardiola lyoni Hall 1860 clam
 Myalinida - Myalinidae
Myalina sp. de Koninck 1842 clam
 Myalinida - Ambonychiidae
Mytilarca sp. Hall and Whitfield 1869 clam
 Pectinida - Entoliidae
Pernopecten sp. Winchell 1865 scallop
 Pectinida - Aviculopectinidae
Aviculopecten sp. M'Coy 1851 scallop
 Ostreida - Pterineidae
Leptodesma sp., "Leiopteria subovata" = Leptodesma (Leiopteria)
Leptodesma sp. Hall 1883 oyster
"Leiopteria subovata" = Leptodesma (Leiopteria) oyster
originally entered as "Liopteria subovata"
 Carditida - Cardiniidae
 Cardiidia - Sanguinolitidae
"Sphenotus sp." = Sanguinolites
"Sphenotus sp." = Sanguinolites M'Coy 1844 clam
 Cardiidia - Grammysiidae
 Pholadomyida - Edmondiidae
 Trigoniida - Schizodidae
 Nuculida - Nuculidae
Nuculopsis sp. Girty 1912 nut clam
Nucula iowensis nut clam
 Protobranchia -
 Protobranchia - Nuculanidae
Nuculana sacata pointed nut clam
originally entered as "Leda sacata"
Gastropoda
 Trochonematoidea - Lophospiridae
Worthenia sp. de Koninck 1883 snail
 Euomphalina - Euomphalidae
Straparollus macromphalus Winchell 1863 snail
 Euomphalina -
"Phanerotinus paradoxus" = Serpulospira paradoxus
"Phanerotinus paradoxus" = Serpulospira paradoxus Winchell 1863 snail
 Euomphalina - Elasmonematidae
"Holopea conica" = Anematina conica
"Holopea conica" = Anematina conica Winchell 1863 snail
 Euomphalina - Platyceratidae
Strophostylus bivolve White and Whitfield 1862 snail
Platyschisma depressa Weller 1900 snail
 Bellerophontida - Bellerophontidae
Bellerophon blairi Miller and Gurley 1896 snail
"Bucanopsis perelegans" = Retispira perelegans White and Whitfield 1862 snail
Bucanopsis sp. Ulrich and Scofield 1897 snail
 Bellerophontida - Euphemitidae
Warthia sp., "Euphemus sp." = Euphemites
Warthia sp. Waagen 1880 snail
"Euphemus sp." = Euphemites Warthin 1930 snail
 Murchisoniina - Porcelliidae
Porcellia sp. Léveillé 1835 snail
 Murchisoniina - Gosseletinidae
"Straparollus lens" = Angyomphalus lens
"Straparollus lens" = Angyomphalus lens Hall 1860 snail
 Murchisoniina -
Murchisonioidea indet. Koken 1896 snail
 Murchisoniina - Murchisoniidae
Aclisina sp. de Koninck 1881 snail
 Murchisoniina - Loxonematidae
Loxonema sp. Phillips 1841 snail
Scaphopoda
  -
Scaphopoda indet. Bronn 1862 tusk shell
 Dentaliida - Dentaliidae
Cephalopoda
 Orthocerida - Orthoceratidae
 Goniatitida - Goniatitidae
Goniatites sp. Haan 1825 ammonite
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
 Oncocerida -
Crinoidea
 Dendrocrinida - Amabilicrinidae
Gilmocrinus sp. Lauden 1933 Sea lily
 Dendrocrinida - Scytalocrinidae
Scytalocrinus sp. Wachsmuth and Springer 1880 Sea lily
 Monobathrida - Dichocrinidae
Dichocrinus sp. Munster 1839 Sea lily
 Monobathrida - Platycrinitidae
Platycrinites sp. Miller 1821 Sea lily
 Diplobathrida -
Rhodocrinites sp. Miller 1821 Sea lily
Anthozoa
 Stauriida - Zaphrentidae
"Zaphrentis cliffordana" = Zaphrenthis
"Zaphrentis cliffordana" = Zaphrenthis horn coral