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Paraguay River (Ediacaran of Paraguay)

Where: Paraguay (22.8° S, 57.5° W: paleocoordinates 22.8° S, 57.5° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Tagatiya Guazu Formation (Itapucumi Group), Ediacaran (635.0 - 542.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: perireef or subreef; lithified limestone

• protected carbonate platform in a peritidal setting, probably in a shallow evaporitic lagoonal environment
• massive, laminated to cross-stratified grainstones and heterolithic facies; intercalated within these rocks are meter-thick beds of laminated microbial mats and domical thrombolitic biostromes (consisting of extensive, laterally continuous low domes up to 10 cm high relief and irregular nodules), both associated with centimeter-thick beds of intraformational breccias

Size class: macrofossils

Preservation: mold/impression

Primary reference: L. V. Warren, T. R. Fairchild, C. Gaucher, P. C. Boggiani, D. G. Poire, L. E. Anelli, and J. C. G. Inchausti. 2011. Corumbella and in situ Cloudina in association with thrombolites in the Ediacaran Itapucumi Group, Paraguay. Terra Nova 23:382-389 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131398: authorized by Wolfgang Kiessling, entered by Uta Merkel on 24.07.2012

Creative Commons license: CC BY (attribution)