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A new Jurassic Phlebopteris (Plantae, Filicales) from the Wallowa Terrane in the Snake River Canyon, Oregon and Idaho

Published online by Cambridge University Press:  20 May 2016

Sidney Ash
Sidney Ash*
Affiliation:
Department of Geology, Weber State University, Ogden, Utah 84408
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Abstract

A new species of the fern Phlebopteris, P. tracyi n. sp., is described from the Jurassic Coon Hollow Formation in the Wallowa terrane in the Snake River Canyon, Oregon and Idaho. The leaf is as large or larger than all specimens of previously described species of Phlebopteris. The pinnae of the new species are divided into many widely spaced, narrow, elongate pinnules that have obtusely pointed apices. Each pinnule contains a strong midrib from which lateral veins arise at a high angle and give off anastomosing branch veins. The fertile pinnae bear circular superficial sori arranged in a single row on each side of midrib. The new Phlebopteris occurs beneath a horizon containing marine fossils of Middle Jurassic age. The presence of P. tracyi in the Coon Hollow Formation indicates that it was deposited under a humid, warm to hot climate.

Type
Research Article
Information
Journal of Paleontology , Volume 65 , Issue 2 , March 1991 , pp. 322 - 329
Copyright
Copyright © The Paleontological Society 

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References

Ash, S. 1980. Upper Triassic floral zones of North America, p. 153–270. In Dilcher, D. L. and Taylor, T. N. (eds.), Biostratigraphy of Fossil Plants. Dowden, Hutchinson and Ross, Inc., Stroudsburg, Pennsylvania.Google Scholar
Ash, S. 1990. A new Jurassic flora from the exotic terranes of western North America and its climatic implications. America Journal of Botany, 77:81.Google Scholar
Ash, S. 1991. Jurassic plant fossils of the Coon Hollow Formation, the Hells Canyon, Oregon and Idaho. Oregon Geology, 53:27–34.Google Scholar
Ash, S., Litwin, R. J., and Traverse, A. 1982. The Upper Triassic fern Phlebopteris smithii (Daugherty) Arnold and its spores. Palynology, 6:203–219.Google Scholar
Bell, W. A. 1956. Lower Cretaceous floras of western Canada. Geological Survey of Canada Memoir 285, 331 p.Google Scholar
Blome, C. D., Jones, D. L., Murchey, B. L., and Liniecki, M. 1986. Geologic implications of radiolarian-bearing Paleozoic and Mesozoic rocks from the Blue Mountains Province, eastern Oregon, p. 79–93. In Vallier, T. L. and Brooks, H. C. (eds.), Geology of the Blue Mountains Region of Oregon, Idaho, and Washington. U.S. Geological Survey Professional Paper 1435.Google Scholar
Brongniart, A. 1836. Historie des vagetaux fossiles ou recherches botaniques et geologiques sue les vegetaux renfermes dans les diverses couches du globe. Paris, G. Dufour and E. D'Ocagne, 1:369–488.Google Scholar
Brown, J. T. 1972. The flora of the Morrison Formation (Upper Jurassic) of central Montana. Unpubl. Ph.D. thesis, University of Montana, Missoula, 60 p.Google Scholar
Churkin, M. Jr., Eberlein, G. D., Hueber, F. M., and Mamay, S. H. 1969. Lower Devonian land plants from graptolitic shale in southeastern Alaska. Palaeontology, 12:559–573.Google Scholar
Coney, P. J., and Campa, M. F. 1987. Lithotectonic terrane map of Mexico (west of the 91st meridian) [Folio of the lithotectonic terrane maps of the North American Cordillera]. U.S. Geological Survey Miscellaneous Field Studies Map MF-1874-D.Google Scholar
Coney, P. J., Jones, D. L., and Monger, J. W. H. 1980. Cordilleran suspect terranes. Nature, 288:329–333.Google Scholar
Corsin, P., and Waterlot, M. 1978. Paleobiogeography of the Dipteridaceae and Matoniaceae of the Mesozoic, p. 51–70. In IV International Gondwana Symposium, 1977, Calcutta, India.Google Scholar
Fontaine, W. M. 1900. Part II, The Jurassic flora, p. 334–422. In Ward, L. F., Fontaine, W. M., Wanner, A., and Knowlton, F. H., Status of the Mesozoic Floras of the United States. U.S. Geological Survey 20th Annual Report, Pt. 2.Google Scholar
Fontaine, W. M. 1905a. The Jurassic flora of Douglas County, Oregon, p. 48–145. In Ward, L. F., Fontaine, W. M., Bibbins, A., and Wieland, G. R., Status of the Mesozoic Floras of the United States, 2nd Paper. U.S. Geological Survey Monograph 46.Google Scholar
Fontaine, W. M. 1905b. Report on the various collections described above. 1. Plants from Curry County, Oreg., p. 148–151. In Ward, L. F., Fontaine, W. M., Bibbins, A., and Wieland, G. R., Status of the Mesozoic Floras of the United States, 2nd Paper. U.S. Geological Survey Monograph 46.Google Scholar
Fry, W. L. 1964. Significant aspects of the Late Jurassic flora from the Monte de Oro Formation of northern California. Geological Society of America Special Paper 76:64–65.Google Scholar
Gastaldo, R. A., and Boersma, M. 1983. A reinvestigation of Early Pennsylvanian species of Mariopteris from the Appalachian region. I. Karinopteris, Mariopteris, and the ‘pottsvillea complex.’ Review of Paleobotany and Palynology, 38:185–226.Google Scholar
Harris, T. M. 1961. The Yorkshire Jurassic Flora, Pt. 1, Thallophyta-Pteridophyta. British Museum (Natural History), London, 212 p.CrossRefGoogle Scholar
Hillhouse, J. W., Gromme, C. S., and Vallier, T. L. 1982. Paleomagnetism and Mesozoic tectonics of the Seven Devils volcanic arc in northeastern Oregon. Journal of Geophysical Research, 87:3777–3794.Google Scholar
Hirmer, M., and Hoerhammer, L. 1936. Morphologie, Systematik, und geographische Verbreitung der Fossilen und rezenten Matoniaceae. Palaeontographica, Pt. B, 81:1–70.Google Scholar
Jones, D. L., Silberling, N. J., Coney, P. J., and Plafker, G. 1987. Lithotectonic terrane map of Alaska (west of the 141st meridian) [Folio of the lithotectonic terrane maps of the North American Cordillera]. U.S. Geological Survey Miscellaneous Field Studies Map MF-1874-A.Google Scholar
Knowlton, F. H. 1916. A Lower Jurassic flora from the upper Matanuska Valley, Alaska. U.S. National Museum Proceedings, 51:451–460.Google Scholar
Lapasha, C. A., and Miller, C. N. Jr. 1985. Flora of the Early Cretaceous Kootenai Formation in Montana, bryophytes and tracheo-phytes excluding conifers. Palaeontographica, Pt. B, 196:11–145.Google Scholar
Mamay, S. H., and Read, C. B. 1956. Additions to the flora of the Spotted Ridge Formation in central Oregon. U.S. Geological Survey Professional Paper 274-I:211–226.Google Scholar
Mamay, S. H., and Reed, B. L. 1984. Permian plant megafossils from the conglomerate of Mount Dall, central Alaska Range. U.S. Geological Survey Circular 868:98–102.Google Scholar
May, S. R., and Butler, R. F. 1986. North American Jurassic apparent polar wander: implications for plate motion, paleogeography and cordilleran tectonics. Journal of Geophysical Research, 91:11, 519–11, 544.CrossRefGoogle Scholar
Monger, J. W. H., and Berg, H. C. 1987. Lithotectonic terrane map of western Canada and southeastern Alaska [Folio of the lithotectonic terrane maps of the North American Cordillera]. U.S. Geological Survey Miscellaneous Field Studies Map MF-1874-B.Google Scholar
Person, C. P., and Delevoryas, T. 1982. The Middle Jurassic flora of Oaxaca, Mexico. Palaeontographica, Pt. B, 180:82–119.Google Scholar
Pessagno, E. A., and Blome, C. D. 1986. Faunal affinities and tectonogenesis of Mesozoic rocks in the Blue Mountains Province of eastern Oregon and western Idaho, p. 65–78. In Vallier, T. L. and Brooks, H. C. (eds.), Geology of the Blue Mountains Region of Oregon, Idaho, and Washington. U.S. Geological Survey Professional Paper 1435.Google Scholar
Presl, K. B. 1847. Die Gefassbundel im Stipes der Farrn. Prague, Haase, 102 p.Google Scholar
Sarewitz, D. R. 1983. Seven Devils terrane? Is it really a piece of Wrangellia? Geology, 11:634–637.2.0.CO;2>CrossRefGoogle Scholar
Silberling, N. J., Jones, D. L., Blake, M. C. Jr., and Howell, D. G. 1987. Lithotectonic terrane map of the western conterminous United States [Folio of the lithotectonic terrane maps of the North American Cordillera]. U.S. Geological Survey Miscellaneous Field Studies Map MF-1874-C.Google Scholar
Spicer, R. A., and Thomas, B. A. 1987. A Mississippian Alaska–Siberia connection: evidence from plant megafossils. Alaskan North Slope Geology, 1:355–358.Google Scholar
Stanley, G. D. Jr., and Beauvais, L. 1990. Middle Jurassic corals from the Wallowa terrane, west central Idaho. Journal of Paleontology, 64:352–362.Google Scholar
Vallier, T. L., and Brooks, H. C. 1986. Paleozoic and Mesozoic faunas of the Blue Mountains Province: a review of their geologic implications and comments on papers in the volume, p. 1–6. In Vallier, T. L. and Brooks, H. C. (eds.), Geology of the Blue Mountains Region of Oregon, Idaho, and Washington. U.S. Geological Survey Professional Paper 1435.Google Scholar
Vallier, T. L., and Engebretson, D. C. 1984. The Blue Mountains island arc of Oregon, Idaho, and Washington: an allochthonous coherent terrane from the ancestral western Pacific Ocean?, p. 197–199. In Howell, D. G., Jones, D. L., Cox, A., and Nur, A. (eds.), Proceedings of the Circum-Pacific Terrane Conference. Stanford University Publications in Geological Sciences, 18.Google Scholar
Vallier, T. L., White, D. L., Ash, S. R., Stanley, G. D., and Jones, D. L. 1986. Jurassic rocks in Hells Canyon, Oregon and Idaho: volcanism, extension, and sedimentation in the Blue Mountains island arc. Geological Society of America Abstracts and Programs, 19:339–340.Google Scholar
Weber, R. 1985. Las plantas fosiles de la Formacion Santa Clara (Triasico Tardio, Sonora, Mexico): Estado actual de las investigavciones, p. 107–124. In Weber, R. (ed.), 3d Congress Latinoamericano de Paleontologia, Simposio sobre flores del Triasico Tardio su fitogeografia y paleoecologia. Universidad Nacional Autonoma de México, Instituto. Geologia, Memoria.Google Scholar
White, D. L., and Vallier, T. L.In press. Geologic evolution of the Pittsburg Landing area, Snake River Canyon, Oregon and Washington. U.S. Geological Survey Professional Paper 1437.Google Scholar
Wieland, G. R. 1914–1916. La flora de la Mixteca Alta. Mexico Instituto Geologia Bulletin 31, Vol. 1, 102 p., Vol. 2, 267 p.Google Scholar