Eurypterid-associated biota of the Eramosa Mbr., Guelph Fmn., Guelph, Ontario (Silurian of Canada)

Where: Ontario, Canada (43.6° N, 80.3° W: paleocoordinates 26.2° S, 45.4° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Eramosa Member (Guelph Formation), Wenlock (433.4 - 427.4 Ma)

• member-level stratigraphic resolution

Environment/lithology: open shallow subtidal; dolomite

• "Environment: BA 3, probably Janius Community of the Janius Community Group as judged from the brachiopods."

•SEP: the Guelph Formation is a very well known and intensively studied unit for petroleum. It is known among petroleum geologists as a "dolomitic reef" and has been the target of drilling in Ontario and the Michigan basin for many years. There is evidence for subaerial exposure during the development of the these "reefal" buildups that fringe the Michigan basin (Charbonneau, 1990)

• "Bituminous dolomite."

Primary reference: R. E. Plotnick. 1999. Habitat of Llandoverian-Lochkovian eurypterids. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities - a case study from the Silurian and Lower Devonian 106-136 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 14194: authorized by Michael Foote, entered by Michael Foote on 23.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Associated biota listed to higher taxon with genus names given for a few groups.
Show authors, comments, and common names
unclassified
  -
Praeaechmina sp.
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834
Ostracoda
 Leperditicopida - Leperditiidae
Leperditia sp.
Leperditia sp. Rouault 1851 ostracod
 Platycopida - Kloedenellidae
Dizygopleura sp.
Dizygopleura sp. Ulrich and Bassler 1923 ostracod
 Beyrichiacea - Zygobolbidae
Bonnemaia sp.
Bonnemaia sp. Ulrich and Bassler 1923 ostracod
Euchelicerata
 Eurypterida - Carcinosomatidae
? Carcinosoma logani
Trilobita
  -
Trilobita indet.
Trilobita indet. Walch 1771 trilobite
Rhynchonellata
 Athyridida - Meristellidae
Whitfieldella sp.
Whitfieldella sp. Hall and Clarke 1893
 Rhynchonellida - Rhynchotrematidae
Stegerhynchus sp.
Stegerhynchus sp. Foerste 1909
 Rhynchonellida - Trigonirhynchiidae
Rhynchotreta sp.
Rhynchotreta sp. Hall 1879
 Spiriferida - Delthyrididae
Howellella sp.
Howellella sp. Kozlowski 1946
 Orthida - Hesperorthidae
Dolerorthis sp.
Dolerorthis sp. Schuchert and Cooper 1931
Strophomenata
 Orthotetida - Chilidiopsidae
"Coolinia sp." = Fardenia (Coolinia)
"Coolinia sp." = Fardenia (Coolinia) Bancroft 1949
 Strophomenida - Rafinesquinidae
Leptaena sp.
Leptaena sp. Dalman 1828
Craniata
 Craniopsida - Craniopsidae
Craniops sp.
Craniops sp. Hall 1859
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail