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New species of the cyathaspidid Poraspis (Agnatha: Heterostraci) from the Late Silurian and Early Devonian of Northwest Territories, Canada

Published online by Cambridge University Press:  20 May 2016

David K. Elliott ,
Elizabeth J. Loeffler  and
Yuhai Liu
David K. Elliott
Affiliation:
Department of Geology, Box 4099, Northern Arizona University, Flagstaff 86011
Elizabeth J. Loeffler
Affiliation:
Department of Geology, University of Bristol, Bristol BS8 1RJ, England
Yuhai Liu
Affiliation:
Institute of Vertebrate Paleontology and Paleoanthropology, Academia Sinica, P.O. Box 643, Beijing, People's Republic of China
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Abstract

Four new species of cyathaspidid extend the range of the genus Poraspis back into the Late Silurian and indicate that the Canadian arctic was its center of origin. Poraspis heintzae n. sp., P. cracens n. sp., P. thules n. sp. and P. parmula n. sp. also increase the known geographic range of the genus which had previously been reported only from the District of Mackenzie (NWT, Canada), Spitsbergen, western and eastern Europe. The identification of P. sericea from the upper member of the Peel Sound Formation substantiates correlation of this interval with the crouchi zone of the Anglo-Welsh Borders, and provides another rare example of a species common to the Canadian arctic and European successions.

Type
Research Article
Information
Journal of Paleontology , Volume 72 , Issue 2 , March 1998 , pp. 360 - 370
Copyright
Copyright © The Paleontological Society 

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References

Ball, H. W., and Dineley, D. L. 1961. The Old Red Sandstone of Brown Clee Hill and the adjacent area. I. Stratigraphy. Bulletin of the British Museum, Natural History (Geology), 5:176–242.Google Scholar
Bardenheuer, P., and Otto, M. 1994. Erste Cyathaspiden-Reste (Agnatha, Heterostraci) aus dem Rheinischen Unterdevon. Geologisches Jahrbuch Hessen. 122:5–11.Google Scholar
Blieck, A., and Heintz, N. 1983. The Cyathaspids of the Red Bay Group (Lower Devonian) of Spitsbergen. XIII. Polar Research, 1(NS):49–74.CrossRefGoogle Scholar
Broad, D. S. 1968. Lower Devonian Heterostraci from the Peel Sound Formation, Prince of Wales Island, Northwest Territories. Unpublished , University of Ottawa, 138 p.Google Scholar
Broad, D. S. 1973. Amphiaspidiformes (Heterostraci) from the Silurian of the Canadian arctic archipelago. Bulletin of the Geological Survey of Canada, 222:35–50.Google Scholar
Broad, D. S., and Dineley, D. L. 1973. Torpedaspis, a new Upper Silurian and Lower Devonian genus of Cyathaspididae (Ostracodermi) from arctic Canada. Bulletin of the Geological Survey of Canada, 222:53–90.Google Scholar
Broad, D. S., Dineley., D. L., and Miall, A. D. 1968. The Peel Sound Formation (Devonian) of Prince of Wales and adjacent islands: a preliminary report. Arctic Journal of the Arctic Institute of North America, 21:84–91.Google Scholar
Brotzen, F. 1933. Die Silurichen und Devonischen Fischverkommen in Westpodolien, 1. Palaeobiologica, 5:423–466.Google Scholar
Bystrow, A. P. 1955. The microstructure of the dermal armour of jawless vertebrates from the Silurian and Devonian, p. 472–523. In Berg, A. S., Memorial Volume, Akademiia Nauk S.S.S.R. [In Russian.] Google Scholar
Denison, R. H. 1964. The Cyathaspididae: a family of Silurian and Devonian jawless vertebrates. Fieldiana, Geology, 13:309–473.Google Scholar
Dineley, D. L. 1968. Osteostraci from Somerset Island. Bulletin of the Geological Survey of Canada, 165:49–63.Google Scholar
Dineley, D. L. 1976. New species of Ctenaspis (Ostracodermi) from the Devonian of Arctic Canada, p. 26–43. In Churcher, C. S. (ed.), Athlon: Essays on Palaeontology in Honour of Loris Shano Russell. R.O.M. Life Sciences, Miscellaneous Publications.Google Scholar
Dineley, D. L., and Liu, Y.-H. 1984. A new actinolepid arthrodire from the Lower Devonian of Arctic Canada. Palaeontology, 27:875–888.Google Scholar
Dineley, D. L., and Loeffler, E. J. 1976. Ostracoderm Faunas of the Delorme and Associated Siluro-Devonian Formations, North West Territories, Canada. Special Papers in Palaeontology, 18, 214 p.Google Scholar
Elliott, D. K. 1983. New Pteraspididae (Agnatha, Heterostraci) from the Lower Devonian of Northwest Territories, Canada. Journal of Vertebrate Paleontology, 2:389–406.CrossRefGoogle Scholar
Elliott, D. K. 1984a. Siluro–Devonian fish biostratigraphy of the Canadian arctic islands. Proceedings of the Linnean Society of N.S.W., 107(3), (1983) 1984:197–209.Google Scholar
Elliott, D. K. 1984b. A new subfamily of Pteraspididae (Agnatha, Heterostraci) from the Upper Silurian and Lower Devonian of Arctic Canada. Palaeontology, 27:169–197.Google Scholar
Elliott, D. K., and Dineley, D. L. 1985. A new heterostracan from the Upper Silurian of Northwest Territories, Canada. Journal of Vertebrate Paleontology, 5:103–110.CrossRefGoogle Scholar
Elliott, D. K., and Dineley, D. L. 1991. Additional information on Alainaspis and Boothiaspis, cyathaspidids (Agnatha: Heterostraci) from the Upper Silurian of Northwest Territories, Canada. Journal of Paleontology, 65:308–313.CrossRefGoogle Scholar
Holmgren, N. 1942. General morphology of the lateral line system of the head in fish. Handlingar. Goteborgs Kungl. Vetenskapsakad, 3, 20, 46 p.Google Scholar
Kiaer, J. 1930. Ctenaspis, a new genus of cyathaspidian fishes. Skrifter Svalbard Ishavet, 33:1–7.Google Scholar
Kiaer, J. 1932. The Downtonian and Devonian vertebrates of Spitsbergen. IV. Suborder Cyathaspida. Skrifter Svalbard Ishavet, 52:7–26.Google Scholar
Kiaer, J., and Heintz, A. 1935. The Downtonian and Devonian vertebrates of Spitsbergen. V. Suborder Cyathaspida. Part 1. Tribe Poraspidei, Family Poraspidae Kiaer. Skrifter Svalbard Ishavet, 40, 138 p.Google Scholar
Lankester, E. R. 1873. On Holaspis sericeus and the relationships of the fish genera Pteraspis, Cyathaspis and Scaphaspis . Geological Magazine, London, 108, 10:241–245.CrossRefGoogle Scholar
Leriche, M. 1906. Contribution a l'etude des poissons du nord de la France et des regions voisines. Memoires de la Societe geologique du Nord, Lille, V, 430 p.Google Scholar
Loeffler, E. J., and Dineley, D. L. 1976. A new species of Corvaspis (Agnatha, Heterostraci) from the upper Silurian to lower or middle Devonian of the Northwest Territories, Canada. Palaeontology, 19:757–766.Google Scholar
Miall, A. D. 1970. Continental marine transition in the Devonian of Prince of Wales Island, Northwest Territories. Canadian Journal of Earth Sciences, 7:124–144.CrossRefGoogle Scholar
Miall, A. D., Kerr, J. W., and Gibling, M. R. 1978. The Somerset Island Formation: an Upper Silurian to ? Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada. Canadian Journal of Earth Sciences, 15:181–189.CrossRefGoogle Scholar
Miles, R. S. 1973. An actinolepid arthrodire from the Lower Devonian Peel Sound Formation, Prince of Wales Island. Palaeontographica, A143:109–118.Google Scholar
Stensiö, E. A. 1926. On the sensory canals of Pteraspis and Palaeaspis . Arkiv för zoologi, 28:1–14.Google Scholar
Thorsteinsson, R. 1958. Cornwallis and Little Cornwallis Islands, District of Franklin, Northwest Territories. Memoir of the Geological Survey of Canada, 294, 134 p.Google Scholar
Thorsteinsson, R. 1967. Preliminary note on Silurian and Devonian ostracoderms from Cornwallis and Somerset Islands, Canadian Arctic Archipelago. Colloques Internationaux du Centre National de la Recherche Scientifique, 163:45–47.Google Scholar
Thorsteinsson, R. 1980. Stratigraphy and conodonts of Upper Silurian and Lower Devonian rocks in the environs of the Boothia Uplift, Canadian Arctic Archipelago. Part 1. Contributions to stratigraphy. Bulletin of the Geological Survey of Canada, 292:1–38.Google Scholar
Thorsteinsson, R., and Tozer, W. 1963. Geology of northern Prince of Wales Island and northwestern Somerset Island, p. 117–129. In Fortier, Y. et al. (eds.), Geology of the North Central Part of the Arctic Archipelago, Northwest Territories (Operation Franklin). Geological Survey of Canada, Memoir 320.Google Scholar
von Alth, A. 1874. Ueber die palaeozischen Gebilde Podoliens und deren Versteinerungen. Abhandlungen der Kaiserlich-koniglichen geologischen Reichsanstalt, Vienna, 7, 77 p.Google Scholar
White, E. I. 1935. Note on new discoveries of Lower Old Red Sandstone vertebrates in Herefordshire. Transactions of the Woolhope Naturalists' Field Club, 1930-1932, 2:179–181.Google Scholar
White, E. I. 1950. Vertebrate faunas of the Lower Old Red Sandstone of the Welsh Borders. Bulletin of the British Museum of Natural History (Geology), 1:51–67.Google Scholar
Woodward, A. S. 1891. Catalogue of the fossil fishes in the British Museum (Natural History). Part II: Elasmobranchii (Acanthodii), Holocephali, Ichthyodorulites, Ostracodermi, Dipnoi, and Teleostomi (Crossopterygii and Chondrostean Actinopterygii). London, 567 p.CrossRefGoogle Scholar
Zych, W. 1927. Old-Red de la Podolie. Prace polskiego instytuto geol, 2, 65 p.Google Scholar
Zych, W. 1931. Fauna Ryb Dewonu i Downtonu Podola. Pteraspidomorphi: Heterostraci. Czesc (Lwow), 1A, 91 p. [In Polish.] Google Scholar