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The puzzle assembled; Ediacaran guide fossil Cloudina reveals an old proto-Gondwana seaway

L. V. Warren, F. Quaglio, C. Riccomini, Marcello G. Simoes, D. G. Poire, N. M. Strikis, L. E. Anelli and P. C. Strikis
The puzzle assembled; Ediacaran guide fossil Cloudina reveals an old proto-Gondwana seaway
Geology (Boulder) (March 2014) 42 (5): 391-394

Abstract

During the Ediacaran the Clymene Ocean separated the Laurentia, Amazonia, and Rio Apa cratons from several landmasses to the west forming the proto-Gondwana supercontinent. However, no clear evidence about the existence of Ediacaran epeiric seas over those landmasses has been found. Here we report and discuss the discovery of the Ediacaran guide fossil Cloudina sp. associated with other metazoan body and trace fossils in the Bambui Group (central eastern Brazil). The Ediacaran age of the Bambui Group and the paleogeographic position of Cloudina-bearing successions in Brazil, Antarctica, Namibia, and Argentina suggest a scenario of ocean connectivity among coeval intracratonic basins of South America, Africa, and Antarctica at the end of Neoproterozoic time. The new finding epitomizes one of the most important paleontological discoveries ever made in South America, helping to solve an old paleogeographic puzzle of the Gondwana supercontinent.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 42
Serial Issue: 5
Title: The puzzle assembled; Ediacaran guide fossil Cloudina reveals an old proto-Gondwana seaway
Affiliation: Universidade Estadual Paulista, Departamento de Geologia Aplicada, Rio Claro, Brazil
Pages: 391-394
Published: 20140317
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 27
Accession Number: 2014-028729
Categories: Stratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch map
S34°00'00" - N05°15'00", W74°00'00" - W34°00'00"
Secondary Affiliation: Universidade de Sao Paulo, BRA, BrazilCentro de Investigaciones Geologicas, ARG, Argentina
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2022, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201418
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