Bass Island Group, Raisin River Fm. (Silurian of the United States)

Where: Michigan and Ohio (42.3° N, 83.0° W: paleocoordinates 29.3° S, 44.1° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Raisin River Formation, Pridoli (423.0 - 419.2 Ma)

• "(Loc #7)"

Environment/lithology: peritidal; dolomite

• "dolo assoc. w/evaporites"

Size class: macrofossils

Primary reference: H. L. Alling and L. I. Briggs. 1961. Stratigraphy of Upper Silurian Cayugan Evaporites. AAPG Bulletin 45(4):515-547 [M. Uhen/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 492: authorized by Jack Sepkoski, entered by Mike Sommers on 17.12.1998, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Alling and Briggs, 1961"
Show authors, comments, and common names
Sedentaria
 Sabellida - Serpulidae
Spirorbis sp.
Spirorbis sp. Daudin 1800
Gastropoda
 Murchisoniina - Loxonematidae
Loxonema sp.
Loxonema sp. Phillips 1841 snail
 Murchisoniina - Lophospiridae
"Solenospira sp." = Ectomaria
"Solenospira sp." = Ectomaria Koken 1896 snail
 Euomphalina - Holopeidae
Holopea sp.
Holopea sp. Hall 1847 snail
Bivalvia
 Modiomorphida - Modiomorphidae
Modiomorpha sp., Goniophora sp.
Modiomorpha sp. Hall and Whitfield 1869 clam
Goniophora sp. Phillips 1848 clam
 Ostreida - Pterineidae
Pterinea sp.
Pterinea sp. Goldfuss 1832 oyster
 Solemyida - Ctenodontidae
"Tellinomya sp." = Ctenodonta
"Tellinomya sp." = Ctenodonta Salter 1852 clam
Cephalopoda
 Oncocerida - Hemiphragmoceratidae
Hexameroceras sp.
Hexameroceras sp. Hyatt 1884
 Oncocerida -
Cyrtoceras sp.
Strophomenata
 Orthotetida - Schuchertellidae
Schuchertella sp.
Schuchertella sp. Girty 1904
Rhynchonellata
 Athyridida - Meristellidae
Whitfieldella sp., Meristina sp.
Whitfieldella sp. Hall and Clarke 1893
Meristina sp. Hall 1867
Craniata
 Craniopsida - Craniopsidae
"Pholidops sp." = Craniops
"Pholidops sp." = Craniops Hall 1859
originally entered as "Pholidops sp."
Ostracoda
 Palaeocopida - Beyrichiidae
Kloedenia sp.
Kloedenia sp. Jones and Holl 1886 ostracod