Hostname: page-component-848d4c4894-75dct Total loading time: 0 Render date: 2024-04-30T12:44:49.470Z Has data issue: false hasContentIssue false
  • English
  • Français

Late Devonian (Frasnian and Famennian) conodonts from the Wadleigh Limestone, southeastern Alaska

Published online by Cambridge University Press:  14 July 2015

Norman M. Savage
Norman M. Savage*
Affiliation:
Department of Geological Sciences, University of Oregon, Eugene 97403
Get access Rights & Permissions [Opens in a new window]

Abstract

Conodont faunas from the upper part of the Wadleigh Limestone, Alexander terrane, southeastern Alaska, are of Frasnian to early Famennian age and include the new taxa Polygnathus aspelundi nanus n. subsp., Polygnathus decorosus dutroi n. subsp., Polygnathus elegantulus sparus n. subsp., Polygnathus gracilis n. subsp. A, Polygnathus n. sp. A, Palmatolepis subrecta youngquisti n. subsp., and Icriodus subterminus uyenoi n. subsp. Four distinct age-determined faunal assemblages are recognized. The lowest is assigned to the Lower Palmatolepis rhenana Zone (the chronozones of Ziegler and Sandberg, 1990, are treated herein as time-rock equivalent assemblage zones). The next is exposed on three small islands just south of Wadleigh Island and is correlated with part of the Lower to Upper Palmatolepis rhenana Zones. The third assemblage, on the eastern side of Wadleigh Island from close to the top of the section, is correlated with part of the Palmatolepis linguiformis Zone. Nearby and overlying this is the fourth assemblage, which is correlated with part of the Lower Palmatolepis triangularis Zone and thus appears to be within the lower Famennian. These Wadleigh Limestone conodont faunas have affinities with faunas from equivalent horizons of the cratonic regions of the Northwest Territories and Alberta in Western Canada and to other faunas globally. The more provincial conodont taxa lend weak but positive support to brachiopod faunal evidence that places the Alexander terrane close to the North American craton during the Late Devonian.

Type
Research Article
Information
Journal of Paleontology , Volume 66 , Issue 2 , March 1992 , pp. 277 - 292
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

Bassler, R. S. 1925. Classification and stratigraphic use of conodonts. Geological Society of America, Bulletin, 36:218–220.Google Scholar
Bischoff, G. 1956. Oberdevonische Conodonten (tola) aus dem Rheinischen Schiefergebirge. Hessischen Landesamtes Bodenforschung Notizblatt, 84:115–137.Google Scholar
Bischoff, G., and Ziegler, W. 1957. Die Conodontenchronologie des Mitteldevons unt des tiefsten Oberdevons. Hessischen Landesamtes Bodenforschung Abhandlungen, 22, 136 p.Google Scholar
Branson, E. B., and Mehl, M. G. 1934. Conodonts from the Grassy Creek Shale of Missouri. University of Missouri Studies, 8:171–259.Google Scholar
Branson, E. B., and Mehl, M. G. 1938. The conodont genus Icriodus and its stratigraphic distribution. Journal of Paleontology, 12:156–166.Google Scholar
Hass, W. H. 1959. Conodonts from the Chappel Limestone of Texas. U.S. Geological Survey Professional Paper 295-J:365–369.Google Scholar
Hinde, G. J. 1879. On conodonts from the Chazy and Cincinnati Group of the Cambro-Silurian, and from the Hamilton and Genesee-Shale of the Devonian, in Canada and the United States. Quarterly Journal of the Geological Society of London, 35:351–369.Google Scholar
Huddle, J. W. 1934. Conodonts from the New Albany Shale of Indiana. Bulletins of American Paleontology, 21(72), 137 p.Google Scholar
Jia, H., et al. 1989. An ideal Frasnian/Famennian boundary in Ma-Ashan, Zhongping, Xiangzhou, Guangxi, South China, p. 79–92. In McMillan, N. J., Embry, A. F., and Glass, D. J. (eds.), Devonian of the World. Canadian Society of Petroleum Geologists Memoir 14(3).Google Scholar
Klapper, G. 1971. Sequence within the conodont genus Polygnathus in the New York lower Middle Devonian. Geologica et Palaeontologica, 5:59–79.Google Scholar
Klapper, G. 1975. Icriodus iowaensis , p. 125–126. In Ziegler, W. (ed.), Catalogue of Conodonts, Volume 1. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart.Google Scholar
Klapper, G. 1989. The Montagne Noire Frasnian (Upper Devonian) conodont succession, p. 449–459. In McMillan, N. J., Embry, A. F., and Glass, D. J. (eds.), Devonian of the World. Canadian Society of Petroleum Geologists Memoir 14(3).Google Scholar
Klapper, G. 1990. Frasnian species of the Late Devonian conodont genus Ancyrognathus . Journal of Paleontology, 64:998–1025.Google Scholar
Klapper, G., and Lane, H. R. 1985. Upper Devonian (Frasnian) conodonts of the Polygnathus biofacies, N.W.T., Canada. Journal of Paleontology, 59:904–951.Google Scholar
Klapper, G., and Lane, H. R. 1989. Frasnian (Upper Devonian) conodont sequence at Luscar Mountain and Mount Haultain, Alberta Rocky Mountains, p. 469–478. In McMillan, N. J., Embry, A. F., and Glass, D. J. (eds.), Devonian of the World. Canadian Society of Petroleum Geologists Memoir 14(3).Google Scholar
MacFarlane, J. M. 1923. Fishes: the source of petroleum. The Macmillan Company, New York, 451 p.Google Scholar
Miller, A. K., and Youngquist, W. 1947. Conodonts from the type section of the Sweetland Creek Shale in Iowa. Journal of Paleontology, 21:501–517.Google Scholar
Müller, K. J. 1956. Zur Kenntnis der Conodonten-Fauna des europaischen Devons, 1; Die Gattung Palmatolepis . Senckenbergische Naturforschende Gesellschaft Abhandlungen, 494, 70 p.Google Scholar
Müller, K. J., and Müller, E. M. 1957. Early Upper Devonian (Independence) conodonts from Iowa, Part 1. Journal of Paleontology, 31:1069–1108.Google Scholar
Orchard, M. J. 1989. Conodonts from the Frasnian–Famennian boundary interval in Western Canada, p. 35–52. In McMillan, N. J., Embry, A. F., and Glass, D. J. (eds.), Devonian of the World. Canadian Society of Petroleum Geologists Memoir 14(3).Google Scholar
Ovnatanova, N. S. 1976. New Late Devonian conodonts of the Russian Platform. Scripta Publishing Company, Paleontological Journal translation from Russian Paleontology Zhurnal, 10(2):210–219.Google Scholar
Pickett, J. 1972. Late Devonian (Frasnian) conodonts from Ettrema, New South Wales. Journal and Proceedings, Royal Society of New South Wales, 105:31–37.CrossRefGoogle Scholar
Sandberg, C. A., and Dreesen, R. 1984. Late Devonian icriodontid biofacies models and alternative shallow-water conodont zonation. Geological Society of America Special Paper 196, 143–177.Google Scholar
Sandberg, C. A., and Ziegler, W. 1979. Taxonomy and biofacies of important conodonts of Late Devonian striacus-Zone, United States and Germany. Geologica et Palaeontologica, 13:173–212.Google Scholar
Sannemann, D. 1955. Beitrag zur Untergliederung des Oberdevons nach Conodonten. Neues Jahrbuch fur Geologie und Palaontologie, Abhandlungen, 100:324–331.Google Scholar
Savage, N. M. 1977. Middle Devonian (Eifelian) conodonts of the genus Polygnathus from the Wadleigh Limestone, southeastern Alaska. Canadian Journal of Earth Sciences, 14:1343–1355.Google Scholar
Savage, N. M. 1987. New polygnathid conodonts from the Frasnian (Upper Devonian) of southeastern Alaska. Canadian Journal of Earth Sciences, 24:2323–2328.CrossRefGoogle Scholar
Savage, N. M. 1989. Devonian faunas and major depositional events in the southern Alexander terrane, southeastern Alaska, p. 257–264. In McMillan, N. J., Embry, A. F., and Glass, D. J. (eds.), Devonian of the World. Canadian Society of Petroleum Geologists Memoir 14(3).Google Scholar
Savage, N. M. 1990. Paleozoic faunal affinities of the Alexander terrane, southeast Alaska. Geological Society of America Annual Meeting, Abstracts with Program, 15:A321.Google Scholar
Savage, N. M., and Funai, C. A. 1980. Devonian conodonts of probable early Frasnian age from the Coronados Islands of southeastern Alaska. Journal of Paleontology, 54:806–813.Google Scholar
Stauffer, C. R. 1938. Conodonts of the Olentangy Shale. Journal of Paleontology, 12:411–443.Google Scholar
Stauffer, C. R. 1940. Conodonts from the Devonian and associated clays of Minnesota. Journal of Paleontology, 14:417–435.Google Scholar
Sweet, W. C. 1988. The conodonta: morphology, taxonomy, paleoecology, and evolutionary history of a long-extinct animal phylum. Oxford Monographs on Geology and Geophysics, No. 10, Oxford University Press, Oxford, 212 p.Google Scholar
Szulczewski, M. 1971. Upper Devonian conodonts, stratigraphy and facial development in the Holy Cross Mountains. Acta Geologica Polonica, 21:1–129.Google Scholar
Ulrich, E. O., and Bassler, R. S. 1926. A classification of the tooth-like fossils, conodonts, with descriptions of American Devonian and Mississippian species. Proceedings of the U.S. National Museum, 68(12), 63 p.Google Scholar
Uyeno, T. T. 1974. Conodonts of the Waterways Formation (Upper Devonian) of northeastern and central Alberta. Geological Survey of Canada Bulletin 232, 93 p.Google Scholar
Uyeno, T. T. 1982. Systematic Conodont Paleontology, p. 73–95. In Norris, A. W., Uyeno, T. T., and McCabe, H. R., Devonian Rocks of the Lake Winnipegosis–Lake Manitoba Outcrop Belt, Manitoba. Geological Survey of Canada Memoir 392, 280 p.Google Scholar
Youngquist, W. L. 1945. Upper Devonian conodonts from the Independence Shale (?) of Iowa. Journal of Paleontology, 19:355–367.Google Scholar
Youngquist, W. L. 1947. A new Upper Devonian conodont fauna from Iowa. Jornal of Paleontology, 21:95–112.Google Scholar
Youngquist, W. L., and Peterson, R. F. 1947. Conodonts from the Sheffield Formation of north-central Iowa. Journal of Paleontology, 21:242–253.Google Scholar
Ziegler, W. 1958. Conodontenfeinstratigraphische Untersuchungen an der Grenze Mitteldevon/Oberdevon und in der Adorfstufe. Hessische Landesamt Bodenforschung Notizblatt, 87:7–77.Google Scholar
Ziegler, W. 1971. Conodont stratigraphy of the European Devonian. Geological Society of America Memoir, 127:227–284.Google Scholar
Ziegler, W., and Sandberg, C. A. 1990. The Late Devonian standard conodont zonation. Courier Forschungsinstitut Senckenberg, 121:1–115.Google Scholar