Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-05T15:46:43.377Z Has data issue: false hasContentIssue false

Silurian trilobites from southwestern Alaska

Published online by Cambridge University Press:  14 July 2015

Jonathan M. Adrain
Affiliation:
Department of Earth Sciences, University of Western Ontario, London, Ontario N6A 5B7, Canada
Brian D. E. Chatterton
Affiliation:
Department of Geology, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
Robert B. Blodgett
Affiliation:
Branch of Paleontology and Stratigraphy, U.S. Geological Survey, Reston, Virginia 22092

Abstract

The first Silurian trilobites to be described from Alaska are of late Llandovery (Telychian) age. They occur with original cuticle intact in a white biosparite. Seven species have been identified, including Paracybantyx occidentalis n. sp., Ligiscus smithi n. sp., Calymene s.l. aff. C. iladon Lane and Siveter, 1991, Scotoharpes aff. S. raaschi Norford, 1973, Scharyia sp., a cheirurine belonging to either Radiurus Ramsköld, 1983, or Protocerauroides Chatterton and Perry, 1984, and an undetermined warburgelline. The fauna has close affinity to those described from similar lithologies in the Telychian of North Greenland. Machaeridians occurring with the trilobites include Turrilepas sp., Compacoleus sp., and Lepidocoleus cf. L. britannicus Withers, 1926.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Adrain, J. M. 1992. Machaeridian classification. Alcheringa, 16:1532.CrossRefGoogle Scholar
Adrain, J. M. 1994. The lichid trilobite Borealarges n. gen., with species from the Silurian of arctic Canada. Journal of Paleontology, 68:10811099.CrossRefGoogle Scholar
Adrain, J. M., Chatterton, B. D. E., and Cocks, L. R. M. 1991. A new species of machaeridian from the Silurian of Podolia, U.S.S.R., with a review of the Turrilepadidae. Palaeontology, 34:637651.Google Scholar
Barrande, J. 1872. Systeme silurien de centre de la Boheme, Ière Partie; Recherches paléontologiques, 1. Supplément. Prague and Paris, 647 p.Google Scholar
Blodgett, R. B., and Clough, J. G. 1985. The Nixon Fork terrane—part of an in-situ peninsula extension of the Paleozoic North American continent. Geological Society of America, Abstracts with Programs, 17:342.Google Scholar
Brongniart, A., and Desmarest, A. G. 1822. Histoire naturelle des crustacés fossiles sous les rapports zoologiques et géologiques. Savoir: Les Trilobites. Paris, 154 p.CrossRefGoogle Scholar
Bruton, D. L. 1968. The trilobite genus Panderia from the Ordovician of Scandinavia and the Baltic areas. Norsk Geologisk Tidsskrift, 48:153.Google Scholar
Cady, W. M., Wallace, R. E., Hoare, J. M., and Webber, E. J. 1955. The central Kuskokwim region, Alaska. U.S. Geological Survey, Professional Paper 268, 132 p.Google Scholar
Chang, W. 1974. Silurian Trilobita, p. 173187. In A Handbook of the Stratigraphy and Palaeontology in Southwest China. Beijing, Academia Sinica, Science Press.Google Scholar
Chatterton, B. D. E., and Ludvigsen, R. 1976. Silicified Middle Ordovician trilobites from the South Nahanni River area, District of Mackenzie, Canada. Palaeontographica A, 154:1106.Google Scholar
Chatterton, B. D. E., and Perry, D. G. 1983. Silicified Silurian odontopleurid trilobites from the Mackenzie Mountains. Palaeontographica Canadiana No. 1, 127 p.Google Scholar
Chatterton, B. D. E., and Perry, D. G. 1984. Silurian cheirurid trilobites from the Mackenzie Mountains, Northwestern Canada. Palaeontographica A, 184:178.Google Scholar
Chlupáč, I. 1971. Some trilobites from the Silurian–Devonian boundary beds of Czechoslovakia. Palaeontology, 14:159177.Google Scholar
Clarke, J. M. 1896. The structure of certain Palaeozoic barnacles. American Geologist, 18:137143.Google Scholar
de Koninck, L. 1857. Sur deux nouvelles espèces siluriennes appartenant au genre Chiton. Bulletin de l'Académie des Sciences de Belgique, 3:190199.Google Scholar
Decker, J., Bergman, S. C., Blodgett, R. B., Box, S. E., Bundtzen, T. K., Clough, J. G., Coonrad, W. L., Gilbert, W. G., Miller, M. L., Murphy, J. M., Robinson, M. S., and Wallace, W. K. In press. Geology of southwestern Alaska. Geological Society of America, Geology of North America, Volume F1, Chapter II-F.Google Scholar
Desmarest, A. G. 1817. Crustacés FossiIes, p. 495519. In Nouveau Dictionnaire d'Histoire naturelle (second edition), 8. Paris.Google Scholar
Faber, C. L. 1886. Remarks on some fossils of the Cincinnati Group. Journal of the Cincinnati Society for Natural History, 9:1420.Google Scholar
Hall, J., and Whitfield, R. P. 1875. Descriptions of invertebrate fossils, mainly from the Silurian System. Report of the Geological Survey of Ohio, Palaeontology 2, Part 2, Section 1:65161.Google Scholar
Hammann, W. 1992. The Ordovician trilobites from the Iberian Chains in the province of Aragón, NE-Spain. 1. The trilobites of the Cystoid Limestone (Ashgill Series). Beringeria, 6:1219.Google Scholar
Hawle, I., and Corda, A. J. C. 1847. Prodrom einer Monographie der böhmischen Trilobiten. Prague, 176 p.Google Scholar
Howells, Y. 1982. Scottish Silurian trilobites. Monographs of the Palaeontographical Society, No. 561, 76 p.Google Scholar
Jell, P. A. 1979. Plumulites and the machaeridian problem. Alcheringa, 3:253259.CrossRefGoogle Scholar
Lamont, A. 1948. Scottish dragons. Quarry Managers' Journal, 31:531535.Google Scholar
Lane, P. D. 1972. New trilobites from the Silurian of northeast Greenland, with a note on trilobite faunas in pure limestones. Palaeontology, 15:336364.Google Scholar
Lane, P. D. 1979. Llandovery trilobites from Washington Land, North Greenland, Grønlands Geologiske Undersøgelse, Bulletin 131, 37 p.Google Scholar
Lane, P. D., and Owens, R. M. 1982. Silurian trilobites from Kap Schuchert, Washington Land, western North Greenland. Rapport Grønlands Geologiske Undersøgelse, 108:4169.CrossRefGoogle Scholar
Lane, P. D., and Siveter, D. J. 1991. A Silurian trilobite fauna dominated by Calymene from Kap Tyson, Hall Land, western North Greenland. Rapport Grønlands Geologiske Undersøgelse, 150:514.CrossRefGoogle Scholar
Lane, P. D., and Thomas, A. T. 1978. Silurian trilobites from NE Queensland and the classification of effaced trilobites. Geological Magazine, 115:351358.CrossRefGoogle Scholar
Lane, P. D., and Thomas, A. T. 1983. A review of the trilobite suborder Scutelluina. Special Papers in Palaeontology, 30:141160.Google Scholar
Lindström, G. 1885. Förteckning på Gotlands siluriska crustacéer. Öfversigt of Kongliga Vetenskaps-Akademiens Förhandlingar, 42(6):3799.Google Scholar
Ludvigsen, R., and Tripp, R. P. 1990. Silurian trilobites from the northern Yukon Territory. Royal Ontario Museum, Life Sciences Contributions, No. 153, 59 p.CrossRefGoogle Scholar
Milne Edwards, H. 1840. Histoire naturelle des Crustacés, comprenant l'anatomie, la physiologie et la classification de ces animaux 3, Paris, 638 p.Google Scholar
Murchison, R. I. 1839. The Silurian System. London, 786 p.Google Scholar
Norford, B. S. 1973. Lower Silurian species of the trilobite Scotoharpes from Canada and northwestern Greenland. Geological Survey of Canada Bulletin, 222:933.Google Scholar
Osmólska, H. 1957. Trilobites from the Couvinian of Wydryszów (Holy Cross Mountains, Poland). Acta Palaeontographica Polonica, 2:5377.Google Scholar
Owens, R. M. 1973. British Ordovician and Silurian Proetidae (Trilobita). Monograph of the Palaeontographical Society, No. 535, 98 p.Google Scholar
Patton, W. W. Jr. 1978. Juxtaposed continental and oceanic-island arc terranes in the Medfra quadrangle, west-central Alaska, p. B38B39. In Johnson, K. M. (ed.), The United States Geological Survey in Alaska: The Accomplishments during 1977. U.S. Geological Survey Circular 772-B.Google Scholar
Perry, D. G., and Chatterton, B. D. E. 1977. Silurian (Wenlockian) trilobites from Baillie-Hamilton Island, Canadian Arctic Archipelago. Canadian Journal of Earth Sciences, 14:285317.CrossRefGoogle Scholar
Přibyl, A. 1946. Příspevek k poznání českých Proetidů. Rozpravy České akademie véd a umění, 55:137.Google Scholar
Přibyl, A. 1967. Die Gattung Scharyia Přibyl, 1946 (Trilobita) und ihre Vertreter aus dem böhmischen Silur und Devon. Spisanie na Bulgarskogo Geologichesko Druzhestvo, 28:285301.Google Scholar
Ramsköld, L. 1983. Silurian cheirurid trilobites from Gotland. Palaeontology, 26:175210.Google Scholar
Raymond, P. E. 1916. New and old Silurian trilobites from southeastern Wisconsin, with notes on the genera of the Illaenidae. Bulletin of the Museum of Comparative Zoology, Harvard, 60:141.Google Scholar
Richter, R., and Richter, E. 1955. Scutelluidae n.n. (Tril.) Senckenbergiana lethaea, 36:291293.Google Scholar
Salter, J. W. 1864. A monograph of the British trilobites from the Cambrian, Silurian, and Devonian formations. Monograph of the Palaeontographical Society, London, 80 p.Google Scholar
Salter, J. W. 1867. A monograph of the British trilobites from the Cambrian, Silurian, and Devonian formations. Monograph of the Palaeontographical Society, p. 177214.Google Scholar
Schallreuter, R. 1985. Mikrofossilien aus Geschieben IV. Machaeridier. Der Geschiebesammler, 18:157171.Google Scholar
Scrutton, C. T. 1975. Corals and stromatoporoids from the Ordovician and Silurian of Konprins Christian Land, northeast Greenland. Meddelelser om Gronland, 171:143.Google Scholar
Šnajdr, M. 1956. The trilobites from the Drabov and Letná beds of the Ordovician of Bohemia. Sborník Ústˇedního ústavu geologického, Paleontologicky, 22 (for 1955):157.Google Scholar
Šnajdr, M. 1980. Bohemian Silurian and Devonian Proetidae (Trilobita). Rozpravy Ústředního ústavu geologického, 45:1324.Google Scholar
Thomas, A. T. 1978. British Wenlock trilobites. Part 1. Monograph of the Palaeontographical Society, No. 552, 56 p.Google Scholar
Vodoes, A. W. 1890. A bibliography of Paleozoic Crustacea from 1698 to 1890 including a list of North American species and a systematic arrangement of genera. United States Geological Survey, Bulletin 63, 177 p.Google Scholar
Withers, T. H. 1926. Catalogue of the Machaeridia. British Museum (Natural History), London, 99 p.Google Scholar
Woodward, H. 1865. On the discovery of a new genus of Cirripedia in the Wenlock Limestone and Shale of Dudley. Quarterly Journal of the Geological Society of London, 21:486489.CrossRefGoogle Scholar
Gong-Zheng, Yin. 1980. New material of Ordovician trilobites from Northern Guizhou. Acta Palaeontologica Sinica, 19:2327.Google Scholar