Chert Bed #2, South bank of English River, 1 mile north of Daytonville. (Carboniferous of the United States)

Also known as SW¼, SW¼, sect. 7, R.8 W. T.77 N., Washington County

Where: Washington County, Iowa (41.5° N, 91.8° W: paleocoordinates 22.3° S, 37.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Wassonville Formation, Kinderhookian (358.9 - 352.0 Ma)

• SW¼, SW¼, sect. 7, R.8 W. T.77 N., Washington County

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone and lithified chert

• Several weather chert zones.

Size class: macrofossils

Primary reference: H. B. Rollins. 1975. Gastropods from the Lower Mississippian Wassonville Limestone in southeastern Iowa. American Museum Novitates 2579:1-35 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49824: authorized by Pete Wagner, entered by Pete Wagner on 27.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Murchisoniina - Palaeozygopleuridae
Palaeozygopleura difficile
Palaeozygopleura difficile Sardeson 1902 snail
 Murchisoniina - Phymatopleuridae
Phymatopleura sp.
Phymatopleura sp. Girty 1939 snail
 Murchisoniina - Gosseletinidae
"Glyptotomaria (Dictyotomaria) quasicapillaria n. sp." = Dictyotomaria quasicapillaria, "Glabrocingulum (Glabrocingulum) minutum n. sp." = Glabrocingulum minutum, "Baylea angulosa n. sp." = Glabrocingulum angulosa, Baylea trifibra n. sp., "Trepospira (Angyomphalus) penelenticulata n. sp." = Angyomphalus penelenticulata
"Glyptotomaria (Dictyotomaria) quasicapillaria n. sp." = Dictyotomaria quasicapillaria Rollins 1975 snail
type locality
"Glabrocingulum (Glabrocingulum) minutum n. sp." = Glabrocingulum minutum Rollins 1975 snail
type locality
"Baylea angulosa n. sp." = Glabrocingulum angulosa Rollins 1975 snail
type locality
Baylea trifibra n. sp. Rollins 1975 snail
type locality
"Trepospira (Angyomphalus) penelenticulata n. sp." = Angyomphalus penelenticulata Rollins 1975 snail
type locality
 Cerithimorpha - Orthonemidae
"Stegocoelia (Hypergonia) percarinata" = Hypergonia percarinata
"Stegocoelia (Hypergonia) percarinata" = Hypergonia percarinata Longstaff 1926 snail
 Caenogastropoda - Goniasmatidae
Cerithioides sp., Cerithioides judiae
Cerithioides sp. Haughton 1859 snail
Cerithioides judiae Rollins 1975 snail
 Cycloneritida - Trachyspiridae
"Naticopsis (Naticopsis) variata" = Trachydoma variata
"Naticopsis (Naticopsis) variata" = Trachydoma variata Phillips 1836 snail
 Bellerophontida - Bellerophontidae
"Bellerophon (Bellerophon) tangentialis" = Teutonophon tangentialis, Retispira "n. sp. Kues & Batten 2001", Retispira exilis, "Bellerophon (Bellerophon) ? sowerbyi" = Waagenella sowerbyi
"Bellerophon (Bellerophon) tangentialis" = Teutonophon tangentialis Phillips 1836 snail
Retispira exilis de Koninck 1883 snail
"Bellerophon (Bellerophon) ? sowerbyi" = Waagenella sowerbyi de Ferrusac and d'Orbigny 1840 snail
 Bellerophontida - Euphemitidae
Euphemites lentiformis, Euphemites cf. urei
Euphemites lentiformis Weller 1916 snail
Euphemites cf. urei Fleming 1828 snail
 Euomphalina - Elasmonematidae
Anematina conica
Anematina conica Winchell 1863 snail
 Euomphalina - Euomphalidae
"Straparollus (Euomphalus) obtusus" = Straparollus (Euomphalus) subplanus
"Straparollus (Euomphalus) obtusus" = Straparollus (Euomphalus) subplanus Hall 1852 snail
 Euomphalina - Anomphalidae
Anomphalus sp.
Anomphalus sp. Meek and Worthen 1866 snail
 Euomphalina - Platyceratidae
Platyschisma laudoni n. sp.
Platyschisma laudoni n. sp. Rollins 1975 snail
type locality