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Early and Middle(?) Cambrian metazoan and protistan fossils from West Africa

Published online by Cambridge University Press:  20 May 2016

Stephen J. Culver ,
John E. Repetski ,
John Pojeta Jr.  and
David Hunt
Stephen J. Culver
Affiliation:
1Department of Palaeontology, The Natural History Museum, Cromwell Road, London SW7 5BD, U.K.
John E. Repetski
Affiliation:
2U.S. Geological Survey, Reston, Virginia 22092, U.S.A.
John Pojeta Jr.
Affiliation:
2U.S. Geological Survey, Reston, Virginia 22092, U.S.A.
David Hunt
Affiliation:
3Department of Geology, The University, Manchester M139PL, U.K.
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Abstract

Supposed Upper Proterozoic strata in the southwest Taoudeni Basin, Guinea and Senegal, and from the Mauritanide fold belt, Mauritania, have yielded mostly poorly preserved small skeletal fossils of metazoan and protistan origin. Problematic, but possible echinoderm material and spicules of the heteractinid sponge Eiffelia dominate the Taoudeni Basin assemblage. The age of the material is not certain but the paleontologic data suggest an Early Cambrian age for the stratigraphically lowest faunas, and a Middle Cambrian age is possible for the stratigraphically highest collections.

Type
Research Article
Information
Journal of Paleontology , Volume 70 , Issue 1 , January 1996 , pp. 1 - 6
Copyright
Copyright © The Paleontological Society 

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References

Bassot, J. P. 1966. Etude géologique du Sénégal oriental et de ses confins guinéo-maliens. Memoire du Bureau Recherche geologie Miniere, Paris, 40, 322 p.Google Scholar
Bengtson, S. 1977. Early Cambrian button-shaped microfossils from the Siberian Platform. Palaeontology, 20:751–762.Google Scholar
Bengtson, S. 1992. Proterozoic and earliest Cambrian metazoans, p. 1017–1033. In Schopf, J. W. and Klein, C. (eds.), The Proterozoic Biosphere. Cambridge University Press, Cambridge.Google Scholar
Bengtson, S., Conway Morris, S., Cooper, B. J., Jell, P. A., and Runnegar, B. 1990. Early Cambrian fossils from South Australia. Association of Australasian Paleontologists Memoir, 9, 364 p.Google Scholar
Bowring, S. A., Grotzinger, J. P., Isachsen, C. E., Knoll, A. H., Pelechaty, S. M., and Kolosov, P. 1993. Calibrating rates of Early Cambrian evolution. Science, 261:1293–1298.Google Scholar
Brasier, M. D. 1979. The Cambrian radiation event, p. 103–159. In House, M. R. (ed.), The Origin of Major Invertebrate Groups. Academic Press, London.Google Scholar
Conway Morris, S., and Chen, M. 1990. Blastulospongia polytreta n. sp., an enigmatic organism from the Lower Cambrian of Hubei, China. Journal of Paleontology, 64:26–30.Google Scholar
Cowie, J. W., and Brasier, M. D. 1989. The Precambrian-Cambrian Boundary. Clarendon Press, Oxford, 213 p.Google Scholar
Culver, S. J. 1991. Early Cambrian Foraminifera from West Africa. Science, 254:689–691.Google Scholar
Culver, S. J. 1994. Early Cambrian Foraminifera from the southwestern Taoudeni Basin, West Africa. Journal of Foraminiferal Research, 24:191–202.Google Scholar
Culver, S. J., and Hunt, D. 1991. Lithostratigraphy of the Precambrian-Cambrian boundary sequence in the southwestern Taoudeni Basin, West Africa. Journal of African Earth Sciences, 13:407–413.Google Scholar
Culver, S. J., and Magee, A. W. 1987. Late Precambrian glacial deposits from Liberia, Sierra Leone and Senegal, West Africa. National Geographic Research, 3:69–81.Google Scholar
Culver, S. J., Pojeta, J. Jr., and Repetski, J. E. 1988a. First record of Early Cambrian shelly microfossils from West Africa. Geology, 16:596–599.Google Scholar
Culver, S. J., Pojeta, J. Jr., Repetski, J. E., and Robineau, B. 1988b. Signification stratigraphique de microfossiles du Cambrien inférieur dans le bassin de Taoudeni, à la frontière Guinée-Sénégal. Compte Rendus de l'Académie des Sciences, Paris, 307:651–656.Google Scholar
Dallmeyer, R. D., and Villeneuve, M. 1987. 40Ar/39 Ar mineral age record of polyphase tectonothermal evolution in the southern Mauritanide orogen, southeastern Senegal. Geological Society of America Bulletin, 98:602–611.Google Scholar
Deynoux, M., Sougy, J., and Trompette, R. 1985. Lower Paleozoic rocks of West Africa and the western part of Central Africa, p. 337–495. In Holland, C. H. (ed.), Lower Paleozoic of North-western and West-central Africa. John Wiley and Sons, Chichester.Google Scholar
Dia, O. 1984. La chaǐne panafricaine et hercynienne des Mauritanides face au bassin protérozoique supérieur à dévonien de Taoudeni dans le secteur clef de Mejeria (Taganet, sud RIM). Lithostratigraphie et tectonique. Un exemple de tectonique tangentielle superposée. , , 516 p.Google Scholar
Dia, O. 1987. An overview of the central Mauritanides, p. II-1–II-90. In Dallmeyer, R. D., Lécorché, J. P., and Dia, O. (eds.), Geotraverse Excursion Across the Central Mauritanide Orogen, West Africa. IGCP Project 233, Terranes in the Circum-Atlantic Paleozoic Orogens.Google Scholar
Gutschick, R. C. 1986. Middle Ordovician agglutinated foraminifera including Reophax from the Mifflin Formation, Platteville Group of Illinois. Journal of Paleontology, 60:233–248.Google Scholar
Landing, E. 1988. Lower Cambrian of eastern Massachusetts: stratigraphy and small shelly fossils. Journal of Paleontology, 62:661–695.Google Scholar
Landing, E., Myrow, P., Benus, A. P., and Narbonne, G. M. 1989. The Placentian Series: appearance of the oldest skeletalized faunas in southeastern Newfoundland. Journal of Paleontology, 63:739–769.Google Scholar
Lécorché, J. P., Roussell, J., Sougy, J., and Guetat, Z. 1983. An interpretation of the geology of the Mauritanides orogenic belt (West Africa) in the light of geophysical data, p. 131–147. In Hatcher, R. D. Jr., Williams, H. and Zietz, T. (eds.), Contributions to the Tectonics and Geophysics of Mountain Chains. Geological Society of America Memoir, 158.Google Scholar
Luo, H., Jiang, Z., Wu, X., Song, L., Ouyang, L., Xing, Y., Liu, G., Zhang, S., and Tao, Y. 1984. Sinian-Cambrian Boundary Stratotype Section at Meishucun, Jinning, Yunnan, China. The Peoples Publishing House, Yunnan, 154 p.Google Scholar
McKie, T., and Donovan, S. K. 1992. Lower Cambrian echioderm ossicles from the Fucoid Beds, northwest Scotland. Scottish Journal of Geology, 28:49–53.Google Scholar
Missarzhevsky, V. V., and Mambetov, A. M. 1981. Stratigraphy and fauna of Cambrian and Precambrian boundary beds of Maly Karatau. Academy of Sciences of the U.S.S.R., 326, 90 p.Google Scholar
Paul, C. R. C., and Smith, A. B. 1984. The early radiation and phylogeny of echinoderms. Biological Reviews, 59:443–481.Google Scholar
Qian, Y., and Bengtson, S. 1989. Palaeontology and biostratigraphy of the Early Cambrian Meishucunian Stage in Yunnan Province, South China. Fossils and Strata, 24, 156 p.Google Scholar
Rossi, P. 1982. Lithostratigraphie et cartographie des formations sédimentaires du pourtour du Massif du Kaarta, Mali occidental. Précambrien terminal-Paléozoique inférieur(?) du sud-ouest du Bassin de Taoudeni. Travaux des Laboratoires des Sciences de la Terre, St. Jérǒme Marseille, Series B, 18, 274 p.Google Scholar
Rozanov, A. Yu, Missarzhevsky, V. V., Volkova, N. A., Voronova, L. C., Krylov, I. N., Keller, B. M., Korolyuk, I. K., Lendzion, K., Michniak, R., Pykhova, N. G., and Sidarov, A. D. 1969. The Tommotian Stage and the Cambrian lower boundary problem. Raaben, M. E., (ed.), Academy of Sciences of the USSR, Order of the Red Banner of Labor Institute of Geology, No. 206, Nauka Publishers, Moscow, Amerind Publishing Co., New Delhi [1981 English translation from Russian], 471 p.Google Scholar
Trompette, R. 1973. Le Précambrien supérieur et le Paléozoique inférieur de l'Adrar de Mauritanie (bordure occidentale du bassin de Taoudeni, Afrique de l'Ouest). Un exemple de sédimentation de craton. Etude stratigraphique et sédimentologique. , . Travaux des Laboratoires des Sciences de la Terre, St. Jérǒme Marseille, Series B, 7, 702 p.Google Scholar
Villeneuve, M. 1984. Etude géoloqique sur la bordure sud-ouest du craton ouest-africain. La suture panafricaine et l'evolution des bassins sédimentaires protérozoiques et paléozoiques de la marge nord-ouest du continent de Gondwana. , , 552 p.Google Scholar
Xing, Y., Ding, Q., Luo, H., He, P., Wang, Y., et al. 1983. The Sinian-Cambrian boundary of China. Bulletin of the Institute of Geology, Chinese Academy of Geological Sciences, No. 10. Geological Publishing House, Beijing, 262 p. [In Chinese with English.]Google Scholar