Eurypterid-associated biota of the dolomite of the Lockport Fmn. at Elora, Ont.: Ludlow, Canada

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Blastozoa indet. Sprinkle 1973
Crinoidea indet. Miller 1821
Bryozoa indet. Ehrenberg 1831
Strophomenata - Orthotetida - Chilidiopsidae
Coolinia sp. Bancroft 1949
spelled with current rank as Fardenia (Coolinia)
Strophomenata - Strophomenida - Amphistrophiidae
Amphistrophia sp. Hall and Clarke 1892
Strophomenata - Strophomenida - Strophonellidae
Strophonella sp. Hall 1879
Strophomenata - Strophomenida - Leptostrophiidae
Protomegastrophia sp. Caster 1939
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
Rhynchonellata - Spiriferida - Cyrtiidae
Eospirifer sp. Schuchert 1913
Rhynchonellata - Spiriferida - Delthyrididae
Howellella sp. Kozlowski 1946
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia sp. King 1850
Rhynchonellata - Orthida - Hesperorthidae
Dolerorthis sp. Schuchert and Cooper 1931
Rhynchonellata - Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953
Rhynchonellata - Pentamerida - Camerellidae
Camerella sp. Billings 1859
Rhynchonellata - Pentamerida - Pentameridae
Rhipidium sp. Schuchert and Cooper 1931
Rhynchonellata - Athyridida - Meristellidae
Whitfieldella sp. Hall and Clarke 1893
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
[entered as Nucelospira sp.]
Rhynchonellata - Athyridida - Rhynchospirinidae
Homoeospira sp. Hall and Clarke 1893
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Rhynchotreta sp. Hall 1879
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Stegerhynchus sp. (Foerste 1909)
original and current combination Rhynchonella (Stegerhynchus)
Rhynchonellata - Atrypida - Atrypidae
Atrypa sp. Dalman 1828
Craniata - Trimerellida - Trimerellidae
Trimerella sp. Billings 1862
Monomerella sp. Billings 1872
Gastropoda indet. Cuvier 1795
Gastropoda - Bellerophontida - Bucaniidae
Tremanotus alpheus (Hall 1868)
Whiteaves 1884
synonym of Tremanotus angustata
Gastropoda - Euomphalina - Anomphalidae
Pycnomphalus solarioides (Hall 1852)
Whiteaves 1895
synonym of Pycnomphalus obesus
Gastropoda - Euomphalina - Pseudophoridae
Murchisonia hercynia n. sp. Billings 1865
Billings 1865
synonym of Pseudotectus comes
Gastropoda - Euomphalina - Euomphalidae
Pleurotomaria velaris n. sp. Whiteaves 1895
Whiteaves 1895
recombined as Euomphalopterus velaris
Pleurotomaria valeria Billings 1865
Billings 1865
recombined as Euomphalopterus valeria
Pleurotomaria elora n. sp. Billings 1865
Billings 1865
recombined as Spinicharybdis elora
Gastropoda - Euomphalina - Holopeidae
Trochonema inornatum n. sp. Whiteaves 1884
Whiteaves 1884
recombined as Pachystrophia inornatum
Gastropoda - Murchisoniina - Lophospiridae
Murchisonia soluta Whiteaves 1884
Whiteaves 1884
recombined as Loxoplocus soluta
Gastropoda - Murchisoniina - Murchisoniidae
Murchisonia mylitta n. sp. Billings 1865
Billings 1865
Murchisonia macrospira Hall 1852
Whiteaves 1884
recombined as Cyrtostropha macrospira
Murchisonia loganii Hall 1852
Hall 1852
synonym of Cyrtostropha macrospira
Loxonema magnum Whitfield 1878
Whiteaves 1884
    = Hormotoma whiteavesi Clarke and Ruedemann 1903
Clarke and Ruedemann 1903
recombined as Michelia whiteavesi
Gastropoda - Murchisoniina - Plethospiridae
Murchisonia vitellia n. sp. Billings 1865
Billings 1865
recombined as Kirkospira vitellia
Gastropoda - Murchisoniina - Hormotomidae
Murchisonia bivittata n. sp. Hall 1852
Hall 1852
recombined as Ptychocaulus bivittata
Murchisonia turritiformis Hall 1852
Whiteaves 1884
recombined as Coelocaulus turritiformis
Murchisonia longispira n. sp. Hall 1852
Hall 1852
recombined as Coelocaulus longispira
Gastropoda - Murchisoniina - Phanerotrematidae
Pleurotomaria occidens (Hall 1867)
Hall 1852
recombined as Phanerotrema occidens
Gastropoda - Murchisoniina - Luciellidae
Pleurotomaria deiopei n. sp. Billings 1865
Billings 1865
recombined as Prosolarium deiopei
Pelecypoda indet. Goldfuss 1820
synonym of Bivalvia
Cephalopoda indet. Cuvier 1797
Trilobita indet. Walch 1771
Eurypterida - Onychopterellidae
Tylopterella boylei
Scyphozoa - Conulariida
Conulariida indet. Miller and Gurley 1896
Anthozoa indet. Ehrenberg 1834
Stromatoporoidea - Stromatoporoidea
Stromatoporoidea indet. Nicholson and Murie 1878
see common names

Country:Canada State/province:Ontario
Coordinates: 43.7° North, 80.4° West (view map)
Paleocoordinates:27.7° South, 43.3° West
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
Period:Silurian Epoch:Ludlow
10 m.y. bin:Silurian 2
Key time interval:Ludlow
Age range of interval:427.40000 - 423.00000 m.y. ago
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: dolomite
Includes fossils?Y
Lithology description: "Dolomite"
Environment:open shallow subtidal Tectonic setting:cratonic basin
Geology comments: "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)
Collection methods and comments
Collection excludes:some macrofossils
Reason for describing collection:paleoecologic analysis
Taxonomic list comments:Associated biota listed to higher taxon with genus names given for a few groups.
Database number:14196
Authorizer:M. Foote, P. Wagner Enterer:M. Foote, P. Wagner
Modifier:M. Foote Research group:marine invertebrate
Created:2002-05-23 04:46:00 Last modified:2006-09-15 15:14:05
Access level:the public Released:2002-05-23 04:46:00
Creative Commons license:CC BY
Reference information

Primary reference:

4261. 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]

Secondary references:

11492 E. Billings. 1865. Palaeozoic fossils, volume 1. Geological Survey of Canada 1-426 [P. Wagner/P. Wagner/P. Wagner]
15795 J. M. Clarke and R. Ruedemann. 1903. Guelph fauna in the state of New York. New York State Museum Memoirs 5:1-100 [P. Wagner/P. Wagner]
15969 J. Hall. 1852. Containing descriptions of the organic remains of the lower middle division of the New York system. Paleontology of New York 2:1-362 [P. Wagner/P. Wagner]
9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]
16442 J. F. Whiteaves. 1884. On some new, imperfectly characterized or previously unrecorded species of fossils from the Guelph Formations of Ontario. Palaeozoic Fossils 3(1):1-43 [P. Wagner/P. Wagner]
16443 J. F. Whiteaves. 1895. Revision of the fauna of the Guelph formation of Ontario, with descriptions of a few new species. Palaeozoic Fossils 3(2):45-109 [P. Wagner/P. Wagner]