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 - 541.0 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)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
"Thrombolite" indet.
Scyphozoa
  - Corumbellidae
Corumbella werneri
Corumbella werneri Hahn et al. 1982 jellyfish
Cloudina lucianoi
  - Cloudinidae
Cloudina lucianoi
Cloudina lucianoi Beurlen and Sommer 1957
 Ichnofossils -
cf. Archaeonassa sp.
cf. Archaeonassa sp. Fenton and Fenton 1937