Trace fossils accompanying possible "Ediacaran organisms" in the Middle Cambrian sediments of the St. Petersburg Region, Russia

• Autorzy: Natalin N. , Mikulas R. , Dronov A.
• Języki publikacji: EN

Abstrakty

EN

Shallow-marine Middle Cambrian sandy sediments of the St. Petersburg Region (i.e., sedimentary cover of the Baltic Shield) bear non-shelly, cup-like fossils, interpreted tentatively as descendants of Ediacaran organisms. The ichnoassemblage accompanying this occurrence consists of Skolithos, Diplocraterion and indeterminate biogenic sedimentary structures. The ichnofabric index is low (1-2). The probable body fossils are crosscut by the trace fossils. Though simple, the ichnoassemblage recorded here yields valuable information on the environment that could have hosted Ediacaran organisms during the earliest Phanerozoic.

Słowa kluczowe

EN

Baltic Shield; Ediacaran-like organisms; Middle Cambrian; Russia; shallow marine; Skolithos ichnofacies

PL

ichnofacja Skolithos; kambr środkowy; Rosja; tarcza bałtycka; wody płytkie

• Wydawca: Faculty of Geology of the University of Warsaw ; Komitet Nauk Geologicznych PAN
• Czasopismo: Acta Geologica Polonica
• Rocznik: 2010
• Tom: Vol. 60, no. 1
• Strony: 71--76
• Opis fizyczny: Bibliogr. 27 poz.,Fot., rys.,Tabl. 1,

Twórcy

autor

Natalin N.

autor

Mikulas R.

autor

Dronov A.

• Department of Geology, University of St. Petersburg, Universitetskaya Emb., St. Petersburg, Russia,

Bibliografia

• Alpert, S.P. 1974. Systematic review of the genus Skolithos. Journal of Paleontology, 48, 661–669.
• Alpert, S.P. 1975. Planolites and Skolithos from the upper Precambrian-Lower Cambrian White-Inyo Mountains, California. Journal of Paleontology, 49, 508–521.
• Conway Morris, S. 1998. The Crucible of Creation, 285 pp. Oxford University Press; Oxford.
• Conway Morris, S. 2000. The Cambrian “explosion”: Slowfuse or megatonnage? Proceedings of the National Academy of Sciences of the USA, 97, 4426–4429.
• Crimes, T.P. and McIlroy, D. 1999.Abiota of Ediacaran aspect from Lower Cambrian strata on the Digermul Peninsula, Arctic Norway. Geological Magazine, 136, 633–642.
• Dronov, A.V., Tolmacheva, T., Rayevskaya, E. and Nestell, M. (Eds) 2005. Cambrian and Ordovician of St Petersburg Region, 62 pp. St Petersburg State University and A.P. Karpinsky All-Russian Research Geological Institute; St Petersburg.
• Dzik, J. 1999. Organic membranous skeleton of the Precambrian metazoans from Namibia. Geology, 27, 519–522.
• Ershova, V., Fedorov, P. and Mikuláš, R. 2006. Trace fossils on and above the transgressive surface: substrate consistency and phosphogenesis (Lower Ordovician, St Petersburg region, Russia). Geologica Carpathica, 57, 415–422.
• Fedonkin, M.A. and Vickers-Rich, P. 2007. Podolia’s Green Valleys. In: Fedonkin M.A., Gehling J.G., Grey K., Narbonne G.M. and Vickers-Rich P. (Eds), The Rise of Animals: Evolution and Diversification of the Kingdom Animalia, pp. 149–155. Johns Hopkins University Press; Baltimore.
• Fillion, D. and Pickerill, R.K. 1990. Ichnology of the Upper Cambrian to Lower Ordovician Bell Island and Wabana groups of eastern Newfoundland, Canada. Palaeontographica Canadiana, 7, 1–119.
• Fürsich, F.T. 1974. Ichnogenus Rhizocorallium. Paläontologische Zeitschrift, 48, 16–28.
• Gehling, J.G. 2001. Proterozoic Ediacara Member within the Rawnsley Quartzite, South Australia. Petroleum Abstracts, 41, 30.
• Gehling, J.G. and Rigby, J.K. 1996. Long expected sponges from the Neoproterozoic Ediacara fauna of South Australia. Journal of Paleontology, 70, 185–195.
• Glaessner, M.F. and Wade, M. 1966. The late Precambrian Fossils from Ediacara, South Australia. Palaeontology, 9, 599–628.
• Hagadorn, J.W., Fedo, C.M. and Waggoner, B.M. 2000. Early Cambrian Ediacaran-type fossils from California. Journal of Paleontology, 74, 731–740.
• Häntzschel, W. 1975. Trace fossils and problematica. In: Teichert, C. (Ed.), Treatise on Invertebrate Paleontology, Part W (Miscellanea), suppl. 1, 269 pp. University of Kansas Press and Geological Society of America; Lawrence and Boulder.
• Horodyski, R.J. 1991. Late Proterozoic megafossils from southern Nevada. Geological Society of America Abstracts with Programs, 23, 163.
• McMenamin, M.A.S. 1996. Ediacaran biota from Sonora, Mexico. Proceedings of the National Academy of Sciences of the USA, 93, 4990–4993.
• McMenamin, M.A.S. 1998. The Garden of Ediacara, 295 pp. Columbia University Press; New York.
• Narbonne, G.M. 2005. The Ediacaran biota: Neoproterozoic origin of animals and their ecosystems. Annual Review of Earth and Planetary Sciences, 33, 421–442.
• Natalin, N.A., Dronov, A.V. and Mikuláš, R. 2006. Trace fossils and soft-bodied Metazoa in terrigenous deposits of the Middle Cambrian, St Petersburg Region. Annual Meeting of the All-Russian Palaeontological Association (VPO), April 2006, Abstracts, p. 25. [In Russian]
• Pflug, H.D. 1972. Systematik der jung-präkambrischen Petalonamae Pflug 1970. Paläontologische Zeitschrift, 46, 56–67.
• Runnegar, B. and Fedonkin, M. 1992. Evolution of the earliest animals. In: Schopf, J.W. (Ed.), Major Events in the History of Life, pp. 369–388. Jones and Bartlett; Sudbury.
• Seilacher, A. 1967. Bathymetry of trace fossils. Marine Geology, 5, 413–428.
• Seilacher, A. 1992. Vendobionta and Psammocorallia. Journal of the Geological Society of London, 149, 607–613.
• Xiao, S. and Laflamme, M. 2008. On the eve of animal radiation: phylogeny, ecology and evolution of the Ediacara biota. Trends in Ecology and Evolution, 24, 31–40.
• Waggoner, B.M. 1998. Interpreting the earliest metazoan fossils: What can we learn? American Zoologist, 38, 975–982.