Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina) von González, P. D, Tortello, M. F, Damborenea, Susana E

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Archaeocyaths from South America: review and a new record von González, P. D., Tortello, M. F., Damborenea, S. E., Naipauer, M., Sato, A. M., Varela, R.

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Totoralia, a new conical-shaped mollusk from the middle Cambrian of western Argentina von Tortello, M. F, Sabattini, N. M

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Graptolites and trilobites from the Eusebio Ayala Formation (Hirnantian?-early Llandovery), Paraná Basin, eastern Paraguay von Alfaro, M. B., Uriz, N. J., Cingolani, C. A., Tortello, M. F., Bidone, A. R., Galeano Inchausti, J. C.

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A review of the Late Cambrian (Furongian) palaeogeography in the western Mediterranean region, NW Gondwana von Álvaro, J. Javier, Ferretti, Annalisa, González-Gómez, Cristina, Serpagli, Enrico, Tortello, M. Franco, Vecoli, Marco, Vizcaïno, Daniel

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Biostratigraphic significance of the latest Cambrian-earliest Ordovician agnostoid trilobites from Northwestern Argentina von Tortello, Marcelo Franco

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El Alisal: a new locality with trace fossils of the Puncoviscana Formation (late Precambrian-early Cambrian) in Salta Province. Argentina von Aceñolaza, Guillermo F, Tortello, Marcelo Franco

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EARLY ORDOVICIAN AGNOSTOID TRILOBITES FROM THE SOUTHERN MONTAGNE NOIRE, FRANCE von TORTELLO, M. FRANCO, VIZCAÏNO, DANIEL, ÁLVARO, J. JAVIER

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Cambrian agnostoid trilobites from Mendoza, Argentina: A systematic revision and biostratigraphic implications von Tortello, M. Franco, Bordonaro, Osvaldo L.

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Biostratigraphic significance of the latest Cambrian-earliest Ordovician agnostoid trilobitesfrom Northwestern Argentina von M. F. Tortello

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A new species of Strepsodiscus Knight (Gastropoda, Bellerophontoidea) from the Upper Cambrian of Argentina von Tortello, M.F, Aceñolaza, G.F, Pinilla, M.K, Sabattini, N.M

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El Alisal: A new locality with trace fossils of thePuncoviscana Formation (late Precambrian-earlyCambrian) in Salta Province, Argentina von G. F. Aceñolaza, M. F. Tortello

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The eyes of the early Tremadoc olenid trilobite Jujuyaspis keideli Kobayashi, 1936 von Aceñolaza, Guillermo F., Tortello, M. Franco, Rábano, Isabel

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The eyes of the Early Tremadoc olenid trilobite Jujuyaspis keideli Kobayashi, 1936 von Acenolaza, G F, Tortello, M F, Rabano, I

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Totoralia, a new conical-shaped mollusk from the Middle Cambrian of western Argentina von Tortello, M. F, Sabattini, N. M

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Totoralia, a new conical-shaped mollusk from the Middle Cambrian of western Argentina von Tortello, M. F, Sabattini, N. M

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THE EYES OF THE EARLY TREMADOC OLENID TRILOBITE JUJUYASPIS KEIDELI KOBAYASHI, 1936 von ACEÑOLAZA, G. U. I. L. L. ERMO F, FRANCO TORTELLO, M, RÁBANO, I. S. A. B. E. L

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Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina von González, P. D, Tortello, M. F, Damborenea, S. E

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Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina von González, P. D, Tortello, M. F, Damborenea, S. E

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Biostratigraphic significance of the latest Cambrian-earliest Ordovician agnostoid trilobites from Northwestern Argentina von Tortello, M. F

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