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Designation of a neotype and paraneotype for Conularina triangulata (Raymond, 1905) (Upper Ordovician, eastern North America)

Published online by Cambridge University Press:  20 January 2020

Heyo Van Iten
Affiliation:
Department of Geology, Hanover College, Hanover, Indiana47243, USA Department of Invertebrate Paleontology, Cincinnati Museum Center, 1301 Western Avenue, Cincinnati, Ohio45203, USA
Mario E. Cournoyer
Affiliation:
Musée de paléontologie et de l’évolution, 541 Congrégation Street, Montréal, QuébecH3K 2J1, Canada
Michelle Coyne
Affiliation:
Geological Survey of Canada, Room 489, 601 Booth Street, Ottawa, OntarioK1A 0E8, Canada

Extract

Conularina triangulata (Raymond, 1905), the genotype of Conularina Sinclair, 1942, is a rare, early Late Ordovician conulariid (Cnidaria, Scyphozoa; Van Iten et al., 2006) having three sides or faces instead of four (Sinclair, 1942, fig. 9; Van Iten, 1992, text-fig. 3E). Originally described from the Valcour Formation (early Sandbian; Dix et al., 2013) on Valcour Island, New York (Sinclair, 1942), C. triangulata has since been found in laterally equivalent strata of the upper Laval Formation (‘Upper Chazy’; Sinclair, 1942) in Laval, Québec, Canada (Sinclair, 1942). From this same unit and area, Sinclair (1942) erected three new, four-sided species of Conularina (C. irrasa, C. raymondi, and C. undosa), and he erected a single four-sided species (C. narrawayi) from the Ottawa Formation (now the Sandbian–Katian Ottawa Group; Dix et al., 2013) at Tétreauville (now Gatineau), Québec. Subsequently, Jerre (1994) reported the occurrence of two species of Conularina in the Upper Ordovician of Sweden. Jerre (1994) also proposed that Eoconularia? forensis Sinclair, 1946 from the Upper Ordovician Citadelle Formation (‘Quebec City’ Formation; Sinclair, 1946) in Québec City, Québec (Promontoire de Québec thrust sheet, Appalachian Humber Zone, Allochtonous Domain; Castonguay et al., 2002) is a species of Conularina.

Type
Taxonomic note
Copyright
Copyright © 2020, The Paleontological Society

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References

Castonguay, S., Tremblay, A., and Lavoie, D., 2002, Carte de compilation géologique, Québec-Chaudière, Les ponts géologiques de l'Est du Canada, Transect 2, Québec: Geological Survey of Canada, Open File 4314, 2002, 2 sheets, https://doi.org/10.4095/213490.Google Scholar
Dix, G.R., Nehza, O., and Okon, I., 2013, Tectonostratigraphy of the Chazyan (late Middle–early Late Ordovician) mixed siliciclastic-carbonate platform, Quebec embayment: Journal of Sedimentary Research, v. 83, p. 451474.CrossRefGoogle Scholar
Jerre, F., 1994, Taxonomy and functional morphology of Silurian conulariids from Gotland: Lund University Publications in Geology 117, p. 133.Google Scholar
Raymond, P.E., 1905, The Fauna of the Chazy Limestone: American Journal of Science, v. 20, p. 379383.Google Scholar
Raymond, P.E., 1908, Gastropoda of the Chazy Limestone: Annals of the Carnegie Museum, v. 4, p. 168225.Google Scholar
Sinclair, G.W., 1942, The Chazy Conularida and their congeners: Annals of the Carnegie Museum, v. 20, p. 219240.Google Scholar
Sinclair, G.W., 1946, Three new conulariids from the Ordovician of Quebec: Le Naturaliste Canadien, v. 73, p. 385390.Google Scholar
Van Iten, H., 1992, Morphology and phylogenetic significance of the corners and midlines of the conulariid test: Palaeontology, v. 35, p. 335358.Google Scholar
Van Iten, H., Leme, J.M., Simões, M.G., Marques, A., and Collins, A.G., 2006, Reassessment of the phylogenetic position of conulariids in the subphylum Medusozoa (phylum Cnidaria): Journal of Systematic Palaeontology, v. 4, p. 109118.CrossRefGoogle Scholar

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Designation of a neotype and paraneotype for Conularina triangulata (Raymond, 1905) (Upper Ordovician, eastern North America)
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Designation of a neotype and paraneotype for Conularina triangulata (Raymond, 1905) (Upper Ordovician, eastern North America)
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