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Haplotaeniatumidae and Inaniguttidae (Radiolaria) from the Lower Silurian of the Cape Phillips Formation, Cornwallis Island, Nunavut, Canada

Published online by Cambridge University Press:  20 May 2016

Eugene W. MacDonald
Eugene W. MacDonald*
Affiliation:
Department of Earth Sciences, St. Francis Xavier University, Antigonish, Nova Scotia B2G 2W5, Canada,
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Abstract

Radiolaria of the families Haplotaeniatumidae Won, Blodgett, and Nestor, 2002 and Inaniguttidae Nazarov and Ormiston, 1984 were recovered from the Llandovery and lower Wenlock of the Cape Phillips Formation on Cornwallis Island, Nunavut, Canada. Three new species of haplotaeniatumids are described. Haplotaeniatum fissura n. sp. is diagnosed by a densely constructed outer layer around a less dense interior; Haplotaeniatum nunavutensis n. sp. has small, circular pores separated by wide lattice bars; and Orbiculopylorum granti n. sp. possesses robust external spines. Haplotaeniatumids described in open nomenclature are Haplotaeniatum labyrintheum?, Haplotaeniatum aff. cathenatum, Haplotaeniatum cf. raneatela, Haplotaeniatum species A, Orbiculopylorum aff. adobensis, Orbiculopylorum cf. marginatum and Orbiculopylorum species A. Gyrosphaera Noble and Maletz, 2000 is synonymized with Haplotaeniatum. The Inaniguttidae are assigned to Plussatispila n. gen. The genus is diagnosed by two, well-spaced lattice shells and at least seven main spines; additional shells may be present. Plussatispila magnilimax n. sp. has a total of four shells, and P. cornwallisensis n. sp. a total of three. Plussatispila delicata n. sp. has only the two fundamental shells of the genus and is slightly more delicate than the other inaniguttids. Plussatispila pellicia n. sp. possesses weakly developed spines and may have additional irregular layers.

Type
Research Article
Information
Journal of Paleontology , Volume 80 , Issue 1 , January 2006 , pp. 19 - 37
Copyright
Copyright © The Paleontological Society 

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References

Afanasieva, M. S. 1986. Radiolyarii semeistva Pylentonemidae. Palaeontologicheskii Zhurnal, 1986(3):22–34.Google Scholar
Danelian, T., and Popov, L. 2003. Ordovician radiolarian biodiversity: Insight based on new and revised data from Kazakhstan. Bulletin de la Societé géologique de France, 174:325–335.Google Scholar
De Wever, P., Dumitrica, P., Caulet, J. P., Nigrini, C., and Caridroit, M. 2001. Radiolarians in the Sedimentary Record. Gordon and Breach Science Publishers, Amsterdam, 533 p.Google Scholar
Ehrenberg, C. G. 1838. Über die Bildung der Kreidefelsen und des Kreidmergels durch unsichtbare Organismen. Abhandlungen der Königlichen Akademie des Wissenschaften zu Berlin, Jarhgang 1838:59–147.Google Scholar
Ehrenberg, C. G. 1875. Fortsetzung der mikrogeoloischen Studien als Gesammt-Uebersichtder mikroskopischen Paläontologie gleichartig analysirter Gebirgsarten der Erde, mit specieller Rücksicht auf den Polycystinen-Mergel von Barbados. Abhandlungen der Königlichen Akademie des Wissenschaften, Jarhgang 1875:1–226.Google Scholar
Foreman, H. P. 1963. Upper Devonian Radiolaria from the Huron member of the Ohio shale. Micropaleontology, 9:267–304.Google Scholar
Furutani, H. 1990. Middle Paleozoic radiolarians from Fukuji area, Gifu Prefecture, central Japan. Journal of Earth Sciences-Nagoya University, 37:1–56.Google Scholar
Goodbody, Q. H. 1981. Silurian Radiolaria from the Cape Phillips Formation of the Canadian Arctic archipelago. Unpublished M.Sc. dissertation, University of Alberta, Edmonton, 388 p.Google Scholar
Goto, H., Umeda, M., and Ishiga, H. 1992. Late Ordovician radiolarians from the Lachlan Fold Belt, southeastern Australia. Memoirs of the Faculty of Science-Shimane University, 26:145–170.Google Scholar
Kurihara, T., and Sashida, K. 2000. Early Silurian (Llandoverian) radiolarians from the Ise area of the Hida “Gaien” Belt, central Japan. Paleontological Research, 4:147–162.Google Scholar
Li, H. 1995. New genera and species of Middle Ordovician Nassellaria and Albaillellaria from Baijingsi, Qilian Mountains, China. Scientia Geologica Sinica, 4:331–346.Google Scholar
MacDonald, E. W. 2004. Palaeoscenidiidae (Radiolaria) from the Lower Silurian of the Cape Phillips Formation, Cornwallis Island, Nunavut, Canada. Journal of Paleontology, 78:257–274.Google Scholar
Nazarov, B. B. 1975. Radiolyarii nizhnego-srednego Paleozoya Kazakhstana. Geologicheskii Institut Akademia Nauk S.S.S.R., Trudy, 275, 203 p.Google Scholar
Nazarov, B. B. 1988. Radiolyarii Paleozoya. Prakticheskoe Rukovodstvo po mikrofaune S.S.S.R., 2. Nedra, Leningrad, 232 p.Google Scholar
Nazarov, B. B., and Ormiston, A. R. 1984. Vozmozhnaya sistema radiolyariy Paleozoya. Morphologiya, Ekologiya i Evolyutsiya Radiolyariy: Materialy i Simposiuma Europicheskikh Radiolaristov, EU-RORAD IV, p. 64–87.Google Scholar
Nazarov, B. B., and Ormiston, A. R. 1993. New biostratigraphically important Paleozoic Radiolaria of Eurasia and North America, p. 22–60. In Blueford, J. and Murchey, B. (eds.), Radiolaria of Giant and Subgiant Fields in Asia. Micropaleontology Special Publication, 6.Google Scholar
Nazarov, B. B., and Popov, L. Ye. 1980. Stratigrafiya i fauna kremnisto-karbonatnykh tolshch Ordovika Kazakhstana. Geologicheskii Institut Akademia Nauk S.S.S.R., Trudy, 331, 190 p.Google Scholar
Nazarov, B. B., Popov, L. Ye., and Apollonov, M. K. 1975. Radiolyarii nizhnego Paleozoya Kazakhstana. Akademia Nauk S.S.S.R., Izvestiya, 10:96–105.Google Scholar
Noble, P. J. 1994. Silurian radiolarian zonation for the Caballos Novaculite, Marathon Uplift, west Texas. Bulletins of American Paleontology, 106, 55 p.Google Scholar
Noble, P. J., and Aitchison, J. C. 1995. Status of Ordovician and Silurian radiolarian studies in North America, p. 19–30. In Blome, C. D., Whalen, P. M., and Reed, K. M. (eds.), Siliceous Microfossils. Paleontological Society Short Courses in Paleontology, 8.Google Scholar
Noble, P., and Aitchison, J. 2000. Early Paleozoic radiolarian biozonation. Geology, 28:367–370.Google Scholar
Noble, P. J., and Maletz, J. 2000. Radiolaria from the Telychian (Llandovery, Early Silurian) of Dalarna, Sweden. Micropaleontology, 46: 265–275.Google Scholar
Noble, P. J., Braun, A., and McClellan, W. 1998. Haplotaeniatum faunas (Radiolaria) from the Llandoverian (Silurian) of Nevada and Germany. Neues Jahrbuch für Geologie und Paläontologie, Monat-schefte, 1998(12):705–726.CrossRefGoogle Scholar
Noble, P. J., Ketner, K. B., and McClellan, W. 1997. Early Silurian radiolaria from northern Nevada. Marine Micropaleontology, 30:215–223.CrossRefGoogle Scholar
Renz, G. W. 1990. Late Ordovician (Caradocian) radiolarians from Nevada. Micropaleontology, 36:367–377.Google Scholar
Roelofs, A. K., and Pisias, N. G. 1986. Revised technique for preparing quantitative radiolarian slides from deep-sea sediments. Micropaleontology, 32:182–185.CrossRefGoogle Scholar
Ruedemann, R., and Wilson, T. Y. 1936. Eastern New York Ordovician cherts. Bulletin of the Geological Society of America, 47:1535–1586.CrossRefGoogle Scholar
Rüst, D. 1892. Beiträge zur Kenntniss der fossilen Radiolarien aus Gesteinen der Trias und der palaeozoischen. Palaeontographica, 38:107–192.Google Scholar
Sashida, K., and Tonishi, K. 1991. An Upper Permian coiled radiolarian from Itsukaichi, central Japan. Micropaleontology, 37:86–94.Google Scholar
Wang, Y.-J. 1993. Middle Ordovician radiolarians from the Pingliang Formation of Gansu Province, China, p. 98–114. In Blueford, J. and Murchey, B. (eds.), Radiolaria of Giant and Subgiant Fields in Asia. Micropaleontology Special Publication, 6.Google Scholar
Webby, B. D., and Blom, W. M. 1986. The first well-preserved radiolarians from the Ordovician of Australia. Journal of Paleontology, 60:145–157.Google Scholar
Won, M.-Z., Blodgett, R. B., and Nestor, V. 2002. Llandoverian (Early Silurian) radiolarians from the Road River Formation of east-central Alaska and the new family Haplotaeniatumidae. Journal of Paleontology, 76:941–964.Google Scholar