1. Corumbella and in situ Cloudina in association with thrombolites in the Ediacaran Itapucumi Group, Paraguay
- Author
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Warren, Lucas V., Fairchild, Thomas R., Gaucher, Claudio, Boggiani, Paulo C., Poire, Daniel Gustavo, Anelli, Luís E., and Inchausti, Julio C. G.
- Subjects
Ediacaran ,Paraguay ,Cloudina ,Meteorología y Ciencias Atmosféricas ,Corumbella ,CIENCIAS NATURALES Y EXACTAS ,Ciencias de la Tierra y relacionadas con el Medio Ambiente - Abstract
An in situ assemblage of Cloudina, thrombolites and an ichnofossil (cf. Archaeonassa), together with fragments of Corumbella werneri, is reported here, from a tidally influenced, shallow, lagoonal setting on a carbonate ramp within the Itapucumi Group, Paraguay. The association of Cloudina with thrombolites is comparable to other terminal Neoproterozoic occurrences, but the coexistence of shelly fossils in situ with trace fossils and microbially induced sedimentary structures is apparently unique. This discovery extends the record of Cloudina and Corumbella in South America and further elucidates the diversity, distribution and palaeoecology of shelled organisms in late Ediacaran time. © 2011 Blackwell Publishing Ltd. Fil: Warren, Lucas V.. Universidade de Sao Paulo; Brasil Fil: Fairchild, Thomas R.. Universidade de Sao Paulo; Brasil Fil: Gaucher, Claudio. Universidad de la República; Uruguay Fil: Boggiani, Paulo C.. Universidade de Sao Paulo; Brasil Fil: Poire, Daniel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina Fil: Anelli, Luís E.. Universidade de Sao Paulo; Brasil Fil: Inchausti, Julio C. G.. Ministerio de Obras Publicas y Comunicaciones; Paraguay
- Published
- 2011