Eurypterid-associated biota of the dolomite of the Lockport Fmn. at Elora, Ont. (Silurian of Canada)

Where: Ontario, Canada (43.7° N, 80.4° W: paleocoordinates 27.7° S, 43.3° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Guelph Formation, Ludlow (427.4 - 423.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: open shallow subtidal; dolomite

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

•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)

• "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 14196: authorized by Michael Foote, entered by Michael Foote on 23.05.2002, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Associated biota listed to higher taxon with genus names given for a few groups.
Stromatoporoidea
 Stromatoporoidea -
Stromatoporoidea indet. stromatoporoid sponge
Scyphozoa
 Conulariida -
Conulariida indet. Miller and Gurley 1896 jellyfish
Anthozoa
  -
Anthozoa indet. Ehrenberg 1834
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
 Murchisoniina - Plethospiridae
"Murchisonia vitellia n. sp." = Kirkospira vitellia1
"Murchisonia vitellia n. sp." = Kirkospira vitellia1 Billings 1865 snail
 Murchisoniina - Murchisoniidae
"Murchisonia macrospira" = Cyrtostropha macrospira4, "Murchisonia loganii" = Cyrtostropha macrospira3, Murchisonia mylitta n. sp.1, "Hormotoma whiteavesi" = Michelia whiteavesi2
"Murchisonia macrospira" = Cyrtostropha macrospira4 Hall 1852 snail
"Murchisonia loganii" = Cyrtostropha macrospira3 Hall 1852 snail
Murchisonia mylitta n. sp.1 Billings 1865 snail
"Hormotoma whiteavesi" = Michelia whiteavesi2 Clarke and Ruedemann 1903 snail
 Murchisoniina - Hormotomidae
"Murchisonia bivittata n. sp." = Ptychocaulus bivittata3, "Murchisonia turritiformis" = Coelocaulus turritiformis4, "Murchisonia longispira n. sp." = Coelocaulus longispira3
"Murchisonia bivittata n. sp." = Ptychocaulus bivittata3 Hall 1852 snail
"Murchisonia turritiformis" = Coelocaulus turritiformis4 Hall 1852 snail
"Murchisonia longispira n. sp." = Coelocaulus longispira3 Hall 1852 snail
 Murchisoniina - Phanerotrematidae
"Pleurotomaria occidens" = Phanerotrema occidens3
"Pleurotomaria occidens" = Phanerotrema occidens3 Hall 1867 snail
 Murchisoniina - Luciellidae
"Pleurotomaria deiopei n. sp." = Prosolarium deiopei1
"Pleurotomaria deiopei n. sp." = Prosolarium deiopei1 Billings 1865 snail
 Murchisoniina - Lophospiridae
"Murchisonia soluta" = Loxoplocus soluta4
"Murchisonia soluta" = Loxoplocus soluta4 Whiteaves 1884 snail
 Euomphalina - Pseudophoridae
"Murchisonia hercynia n. sp." = Pseudotectus comes1
"Murchisonia hercynia n. sp." = Pseudotectus comes1 Perner 1903 snail
 Euomphalina - Anomphalidae
"Pycnomphalus solarioides" = Pycnomphalus obesus5
"Pycnomphalus solarioides" = Pycnomphalus obesus5 Lindström 1884 snail
 Euomphalina - Euomphalidae
"Pleurotomaria elora n. sp." = Spinicharybdis elora1, "Pleurotomaria velaris n. sp." = Euomphalopterus velaris5, "Pleurotomaria valeria" = Euomphalopterus valeria1
"Pleurotomaria elora n. sp." = Spinicharybdis elora1 Billings 1865 snail
"Pleurotomaria velaris n. sp." = Euomphalopterus velaris5 Whiteaves 1895 snail
"Pleurotomaria valeria" = Euomphalopterus valeria1 Billings 1865 snail
 Euomphalina - Holopeidae
"Trochonema inornatum n. sp." = Pachystrophia inornatum4
"Trochonema inornatum n. sp." = Pachystrophia inornatum4 Whiteaves 1884 snail
 Bellerophontida - Bucaniidae
"Tremanotus alpheus" = Tremanotus angustata4
"Tremanotus alpheus" = Tremanotus angustata4 Hall 1852 snail
Cephalopoda
  -
Cephalopoda indet. Cuvier 1797
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Craniata
 Trimerellida - Trimerellidae
Monomerella sp. Billings 1872
Trimerella sp. Billings 1862
Strophomenata
 Orthotetida - Chilidiopsidae
"Coolinia sp." = Fardenia (Coolinia)
"Coolinia sp." = Fardenia (Coolinia) Bancroft 1949
 Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
 Strophomenida - Leptostrophiidae
 Strophomenida - Strophonellidae
Strophonella sp. Hall 1879
 Strophomenida - Amphistrophiidae
Amphistrophia sp. Hall and Clarke 1892
Rhynchonellata
 Pentamerida - Pentameridae
Rhipidium sp. Schuchert and Cooper 1931
 Pentamerida - Camerellidae
Camerella sp. Billings 1859
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
 Spiriferida - Delthyrididae
Howellella sp. Kozlowski 1946
 Spiriferida - Cyrtiidae
Eospirifer sp. Schuchert 1913
 Orthida - Hesperorthidae
Dolerorthis sp. Schuchert and Cooper 1931
 Orthida - Platystrophiidae
 Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953
 Athyridida - Meristellidae
Whitfieldella sp. Hall and Clarke 1893
 Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
[entered as Nucelospira sp.]
 Athyridida - Rhynchospirinidae
Homoeospira sp. Hall and Clarke 1893
 Rhynchonellida - Trigonirhynchiidae
Rhynchotreta sp. Hall 1879
 Rhynchonellida - Rhynchotrematidae
Stegerhynchus sp. Foerste 1909
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
Euchelicerata
 Eurypterida - Onychopterellidae
unclassified
  -
Blastozoa indet. Sprinkle 1973
cystoids
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily