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Senckenbergiana lethaea

, Volume 76, Issue 1–2, pp 259–265 | Cite as

Devonian conodont biochronology in geologic time calibration

  • Charles A. Sandberg
  • Willi Ziegler
Article

Abstract

The conodont-based biochronology of the Devonian Period is calibrated herein on the basis of: (1) a recent, reliable radiometric dating (Claoué-Long et al. 1992) of a stratigraphic position just above the Devonian-Carboniferous boundary; and (2) new calculations of stage durations based on our estimates and those of a large number of other Devonian workers, which pertain to many stratigraphic sequences in several different paleotectonic settings globally. Using these tools we maintain the 46-m.y. duration for the Devonian Period given by the recent global timescale (GTS 89) ofHarland et al. (1990). The main changes to GTS 89 are accomplished by raising the dating of the end of the Devonian by 9 m.y. from 363 Ma to 354 Ma and considerably shortening the bizarre estimate given by GTS 89 for the length of the oldest two Early Devonian stages. We reiterate our earlier exposé (Ziegler & Sandberg 1994) of the inaccuracies and misestimates of the ages of stage boundaries inherent in GTS 89 because of its misuse of conodont zones, which it employed as chrons to subdivide the Devonian Period.

Our revisions provide the following new ages: 354 Ma, end of Devonian Period; 364 Ma, start of Famennian Stage; 369 Ma, start of Frasnian Stage; 376 Ma, start of Givetian Stage; 381 Ma, start of Eifelian Stage; 389 Ma, start of Emsian Stage; 393 Ma, start of Pragian Stage; and 400 Ma, start of Lochkovian Stage and Devonian Period. Durations of stages are thus: Famennian, 10 m.y.; Frasnian, 5 m.y.; Givetian, 7 m.y.; Eifelian, 5 m.y.; Emsian, 8 m.y.; Pragian, 4 m.y.; and Lochkovian, 7 m.y.

This paper is an expanded version of a talk (Sandberg & Ziegler 1996) presented in July 1996 at the ECOS-VI meeting of the Pander (Conodont) Society in Warsaw, Poland.

Key words

Timescale absolute time biochronology conodonts Devonian global 

Conodonten-biochronologie und geologische zeitmessung im devon

Kurzfassung

Die auf Conodonten gegründete Biochronologie der Devon-Periode wird geeicht mit Hilfe einer verläßlichen radiometrischen Datierung (Claoué-Long et al. 1992) für eine stratigraphische Position direkt oberhalb der Devon-Karbon-Grenze. Außerdem wird die Dauer der Devon-Stufen aufgrund eigener Schätzungen und denen zahlreicher anderer Devon-Bearbeiter neu definiert. Diese Kalkulationen lassen sich in vielen typischen Devongebieten mit unterschiedlicher Fazies und Struktur weltweit erkennen. Bei der Festlegung dieser neuen Daten halten wir an der Gesamtdauer der Devon-Periode von 46 m.y. fest, wie sie auch im GTS 89 vonHarland et al. (1990) angegeben ist. Die Hauptveränderungen gegenüber GTS 89 werden erreicht, indem das Ende des Devons um 9 m.y. von 363 Ma auf 354 Ma verringert wird; zudem werden die kuriosen Schätzungen der beiden ältesten frühdevonischen Stufen durch GTS 89 jetzt beträchtlich gekürzt. SchonZiegler & Sandberg (1994) hatten auf die Ungenauigkeiten und Fehlschätzungen der Alter der Stufengrenzen durch GTS 89 hingewiesen. Diese waren entstanden, weil GTS 89 die Conodontenzonen hierarchisch falsch eingestuft und sie trotzdem als Chronen benutzt hatte, um das Devon zu untergliedern.

Unsere Revisionen führen zu folgenden neuen, angepaßten Altern: 354 Ma, Ende der Devon-Periode (= Devon-Karbon-Grenze); 364 Ma, Beginn der Famenne-Stufe; 369 Ma, Beginn der Frasne-Stufe; 376 Ma, Beginn der Givet-Stufe; 381 Ma, Beginn der Eifel-Stufe; 389 Ma, Beginn der Ems-Stufe; 393 Ma, Beginn der Prag-Stufe; und 400 Ma, Beginn der Lochkov-Stufe und der Devon-Periode. Die Dauer der Stufen sind demnach wie folgt: Famennium, 10 m.y.; Frasnium, 5 m.y.; Givetium, 7 m.y.; Eifelium, 5 m.y.; Emsium, 8 m.y.; Pragium, 4 m.y.; Lochkovium, 7 m.y.

Die vorliegende Arbeit ist die erweiterte Fassung eines Vortrags (Sandberg & Ziegler 1996), der im Juli 1996 während der ECOS-VI Tagung der Pander Society in Warschau, Polen, gehalten wurde.

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References

  1. Bai, S. L. (1995): High Resolution Correlation, Milankovitch Cyclicity, and Nickel-Event — evidence from South China. — 62 p., 10 text-figs., 5 tabs.; Beijing (Beijing University Press). — [The date of imprint is 1995, possibly the real date of publication is March 1996, it was distributed in April 1996.]Google Scholar
  2. Bai, S. L., Bai, Z. Q., Ma, X. P., Wang, D. R. &Sun, Y. L. (1994): Devonian Events and Biostratigraphy of South China. — Conodont zonation and correlation, bio-event and chemo-event, Milankovitch cycle and nickel-episode. — 303 p., 14 text-figs., 32 tabs., 45 pls.; Beijing (Beijing University Press). — [The date of imprint is 1994, possibly the real date of publication is March 1996, it was distributed in April 1996.]Google Scholar
  3. Boucot, A. J. (1975): Evolution and extinction rate controls. — Dev. Palaeont. Stratigr.,1: I-XV, 1–427, 44 text-figs., 6 tabs., 4 pls.; Amsterdam, Oxford, New York (Elsevier).Google Scholar
  4. Charpentier, R. R. &Sandberg, C. A. (1992): A Devonian/Carboniferous conodont database-Documentation and user’s manual. — U.S. Geol. Surv. Open-File Rep.,92-273A & 92-273 B: 1–61, 2 computer 3.5-in. DS floppy disks; Denver.Google Scholar
  5. Claoué-Long, J. C., Jones, P. J., Roberts, J. &Maxwell, S. (1992): The numerical age of the Devonian-Carboniferous boundary. — Geol. Mag.,129 (3): 281–291, 7 text-figs., 2 tabs.; Cambridge.CrossRefGoogle Scholar
  6. Fordham, B. G. (1992): Chronometric calibration of mid-Ordovician to Tournaisian conodont zones: a compilation from recent graphic-correlation and isotope studies. — Geol. Mag.,129 (6): 709–721, 3 text-figs.; Cambridge.CrossRefGoogle Scholar
  7. Harland, W. B., Armstrong, R. L., Cox, A. V., Craig, L. E., Smith, A. G. &Smith, D. G. (1990): A geologic time scale 1989. — 263 p. and wall chart (= GTS 89); Cambridge, New York, Port Chester, Melbourne, Sydney (Cambridge Univ. Press).Google Scholar
  8. Harland, W. B., Cox, A. V., Llewellyn, P. G., Pickton, C. A. G., Smith, A. G. &Walters, R. (1982): Geological time scale. — 131 p.; Cambridge (Cambridge Univ. Press).Google Scholar
  9. Helms, J. &Ziegler, W. (1981): Evolution of thePa element inPalmatolepis Ulrich & Bassler, 1926. — In:D. L. Clark, W. C. Sweet, S. M. Bergström, G. Klapper, R. L. Austin, F. H. T. Rhodes, K. J. Müller, W. Ziegler, M. Lindström, J. F. Miller, A. G. Harris, Part W, Miscellanea, Supplement 2, Conodonta. — Treatise on Invertebrate Paleontology: text-fig. 62; Boulder/Colo., Lawrence/Kan. (Geol. Soc. Amer., Univ. Kansas).Google Scholar
  10. House, M. R (1991): Devonian sedimentary microrhythms and a Givetian time scale. — Proc. Ussher Soc.,7: 392–395, 4 text-figs.; Camborne.Google Scholar
  11. Johnson, J. G., Klapper, G. &Sandberg, C. S. (1985): Devonian eustatic fluctuations in Euramerica. — Bull. geol. Soc. Amer.,96: 567–587, 12 text-figs.; Ithaca/N.Y.CrossRefGoogle Scholar
  12. Klapper, G. (1977), with contributions byJohnson, D. B.: Lower and Middle Devonian conodont sequence in central Nevada. — In: M. A.Murphy, W. B. N.Berry & C. A.Sandberg [Eds.], Western North America: Devonian. — Univ. Calif., Riverside, Campus Mus. Contr.,4: 33–54, 1 tab.; Riverside/Calif.Google Scholar
  13. Klapper, G. &Johnson, D. B. (1975): Sequence in conodont genusPolygnathus in Lower Devonian at Lone Mountain, Nevada. — Geologica et Palaeontologica,9: 65–83, 4 text-figs., 3 pls.; Marburg.Google Scholar
  14. Klapper, G. &Johnson, J. G. (1980): Endemism and dispersal of Devonian conodonts. — J. Paleont.,54 (2): 400–455, 6 text-figs., 4 pls.; Tulsa/Okla.Google Scholar
  15. Lane, H. R. &Ormiston, A. R. (1979): Siluro-Devonian biostratigraphy of the Salmontrout River Area, East-Central Alaska. — Geologica et Palaeontologica,13: 39–96, 8 text-figs., 3 tabs., 12 pls.; Marburg.Google Scholar
  16. Mawson, R. (1995): Early Devonian polygnathid conodont lineages with special reference to Australia. — Cour. Forsch.-Inst. Senckenberg,182: 389–398, 1 text-fig., 1 pl.; Frankfurt a. M.Google Scholar
  17. Menning, M. (1989): A synopsis of numerical time scales 1917–1986. — Episodes,12 (1): 3–5, 1 text-fig.; Ottawa.Google Scholar
  18. Murphy, M. A. (1987): The possibility of a Lower Devonian equal-increment time scale based on lineages in Lower Devonian conodonts. — In:R. L. Austin [Ed.], Conodonts: Investigative techniques and applications. — p. 284–293, text-figs. 17.1–17.4, tab. 17.1; Chichester (Ellis Horwood Ltd.).Google Scholar
  19. Murphy, M. A., Matti, J. C. &Walliser, O. H. (1981): Biostratigraphy and evolution of theOzarkodina remscheidensis-Eognathodus sulcatus lineage (Lower Devonian) in Germany and central Nevada. — J. Paleont.,55 (4): 747–772, 12 text-figs., 3 pls.; Tulsa/Okla.Google Scholar
  20. Sandberg, C. A., Gutschick, R. C., Johnson, J. G., Poole, F. G. &Sando, W. J. (1983): Middle Devonian to Late Mississippian geologic history of the Overthrust Belt region, western United States. — Rocky Mountain Assoc. Geologists, Geologic Studies of the Cordilleran Thrust Belt,2: 691–719, 17 text-figs.; Denver/Colo.Google Scholar
  21. Sandberg, C. A. &Poole, F. G. (1977): Conodont biostratigraphy and depositional complexes of Upper Devonian cratonic-platform and continental-shelf rocks in the Western United States. — In: M. A.Murphy, W. B. N.Berry & C. A.Sandberg [Eds.], Western North America: Devonian. — Univ. Calif., Riverside, Campus Mus. Contr.,4: 144–182, 16 text-figs.; Riverside/Calif.Google Scholar
  22. Sandberg, C. A. &Ziegler, W. (1996): Devonian conodont biochronology in geologic time calibration. — In: J.Dzik [Ed.], 6th European Conodont Symposium (ECOS VI), Abstracts: 52; Warszawa. — (Instytut Paleobiologii PAN).Google Scholar
  23. Sandberg, C. A., Ziegler, W. &Bultynck, P. (1989): New standard conodont zones and earlyAncyrodella phylogeny across Middle-Upper Devonian boundary. — Cour. Forsch.-Inst. Senckenberg,110: 195–230, 4 text-figs., 5 pls.; Frankfurt a. M.Google Scholar
  24. Sandberg, C. A., Ziegler, W., Dreesen, R. &Butler, J. L. (1988): Late Frasnian mass extinction; conodont event stratigraphy, global changes, and possible causes. — In: W.Ziegler [Ed.], 1st International Senckenberg Conference and 5th European Conodont Symposium (ECOS V). Contributions I. — Cour. Forsch.-Inst. Senckenberg,102: 263–307, 15 text-figs., 6 tabs., 2 pls.; Frankfurt a. M.Google Scholar
  25. Sandberg, C. A., Ziegler, W., Dreesen, R. &Butler, J. L. (1992): Conodont biochronology, biofacies, taxonomy, and event stratigraphy around middle Frasnian Lion Mudmound (F2h), Frasnes, Belgium. — Cour. Forsch.-Inst. Senckenberg,150: 1–87, 21 text-figs., 6 tabs., 10 pls.; Frankfurt a. M.Google Scholar
  26. Scotese, C. R. (1986): Early Famennian (367 Ma) equatorial world view. — In:S. Roy [Ed.], The Devonian; a portfolio of maps 1978–1986. — pl. 12; Anchorage (Alaska Pacific Univ., Devonian Inst.).Google Scholar
  27. Sweet, W. C. (1988): The Conodonta. Morphology, taxonomy, paleoecology, and evolutionary history of a long-extinct animal phylum. — Oxford Monogr. geol. geophys.,10: I-X, 1–212, 96 text-figs., 13 tabs.; New York, Oxford (Clarendon Press).Google Scholar
  28. Walliser, O. H., Bultynck, P., Weddige, K., Becker, R. T. &House, M. R. (1995): Definition of the Eifelian-Givetian Stage boundary. — Episodes,18 (3): 107–115, 5 text-figs.; Washington/D.C.Google Scholar
  29. Weddige, K. (1977): Die Conodonten der Eifel-Stufe im Typusgebiet und in benachbarten Faziesgebieten. — Senckenbergiana lethaea,58 (4/5): 271–419, 9 text-figs., 20 tabs., 6 pls.; Frankfurt am Main.Google Scholar
  30. Weddige, K. (1987): The lower Pragian boundary (Lower Devonian) based on the conodont speciesEognathodus sulcatus. — Senckenbergiana lethaea,67 (5/6): 479–487, 6 text-figs.; Frankfurt a. M.Google Scholar
  31. Weddige, K. &Ziegler, W. (1977): Correlation of Lower/Middle Devonian boundary beds. — Newsl. Stratigr.,6 (2): 67–84, 3 text-figs.; Berlin, StuttgartGoogle Scholar
  32. Yolkin, E. A., Weddige, K., Izokh, N. G. &Erina, M. V. (1994): New Emsian conodont zonation (Lower Devonian). — Cour. Forsch.-Inst. Senckenberg,168: 139–157, 4 text-figs., 1 tab., 1 pl.; Frankfurt a. M.Google Scholar
  33. Ziegler, W. (1962): Taxionomie und Phylogenie Oberdevonischer Conodonten und ihre stratigraphische Bedeutung. — Abh. hess. L.-Amt Bodenforsch.,38: 1–166, 18 text-figs. 11 tabs., 14 pls.; Wiesbaden.Google Scholar
  34. Ziegler, W. (1965): Eine Verfeinerung der Conodontengliederung an der Grenze Mittel-/Oberdevon. — Fortschr. Geol. Rheinl. u. Westf.,9 647–676, 4 text-figs., 5 tabs., 6 pls.; Krefeld.Google Scholar
  35. Ziegler, W. (1971): Conodont Stratigraphy of the European Devonian. — In: W. C.Sweet & S. M.Bergström [Eds.], Symposium on Conodont Biostratigraphy. — Mem. geol. Soc. Amer.,127: 227–284, 3 text-figs., 6 tabs.; Boulder/Colo.Google Scholar
  36. Ziegler, W. (1978): Devonian. — In: G. V.Cohee, M. F.Glaessner & H. D.Hedberg [Eds.], Contributions to the Geologic Time Scale. — Amer. Assoc. Petroleum Geologists, Studies in Geology,6: 337–349, 1 text-fig., 2 tabs.; Tulsa/Okla.Google Scholar
  37. Ziegler, W. &Klapper, G. (1982): Thedisparilis conodont Zone, the proposed level for the Middle — Upper Devonian boundary. — Cour. Forsch.-Inst. Senckenberg,55: 463–492, 3 text-figs., 3 pls.; Frankfurt a. M.Google Scholar
  38. Ziegler, W., Klapper, G. &Johnson, J. G. (1976): Redefinition and subdivision of thevarcus-Zone (Conodonts, Middle-? Upper Devonian) in Europe and North America. — Geologica et Palaeontologica,10: 109–139, 5 text-figs., 15 tabs., 4 pls.; Marburg.Google Scholar
  39. Ziegler, W. &Sandberg, C. A. (1990): The Late Devonian standard conodont zonation. — Cour. Forsch.-Inst. Senckenberg,121: 1–115, 11 text-figs., 7 tabs., 17 pls.; Frankfurt a. M.Google Scholar
  40. Ziegler, W. &Sandberg, C. A. (1994): Conodont phylogenetic-zone concept. — Newsl. Stratigr.,30 (2): 105–123; Berlin, Stuttgart.Google Scholar
  41. Ziegler, W. &Sandberg, C. A. (1996): Reflexions on Frasnian and Famennian Stage boundary decisions as a guide to future deliberations. — Newsl. Stratigr.,33 (3): 157–180, 2 text-figs., 2 tabs., 2 app.; Berlin, Stuttgart.Google Scholar

Copyright information

© E. Schweizerbart’sche Verlagsbuchhandlung 1996

Authors and Affiliations

  • Charles A. Sandberg
    • 1
  • Willi Ziegler
    • 2
  1. 1.Federal CenterDenverUSA
  2. 2.Forschungsinstitut SenckenbergFrankfurt am MainGermany

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