PBDB Collection

Paraguay River: Ediacaran, Paraguay

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Cloudinidae

	Cloudina lucianoi Beurlen and Sommer 1957
Scyphozoa - Corumbellidae

	Corumbella werneri Hahn et al. 1982
unclassified

	informal Thrombolite indet.

	cf. Archaeonassa sp. Fenton and Fenton 1937
see common names

Geography

Country:	Paraguay
Coordinates:	22.8° South, 57.5° West (view map)
Paleocoordinates:
Basis of coordinate:	stated in text
Geographic resolution:	outcrop

Time

Period:	Ediacaran

Key time interval:	Ediacaran
Age range of interval:	635 - 538.8 m.y. ago

Stratigraphy

Geological group:	Itapucumi	Formation:	Tagatiya Guazu
Stratigraphic resolution:	group of beds

Lithology and environment

Primary lithology:	lithified "limestone"
Lithology description: 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
Environment:	perireef or subreef
Geology comments: protected carbonate platform in a peritidal setting, probably in a shallow evaporitic lagoonal environment

Taphonomy

Modes of preservation:	body,mold/impression
Size of fossils:	macrofossils

Collection methods and comments

Collection methods:	field collection
Reason for describing collection:	taxonomic analysis

Metadata

Database number:	131398
Authorizer:	W. Kiessling	Enterer:	U. Merkel
Modifier:	U. Merkel	Research group:	marine invertebrate
Created:	2012-07-24 17:25:47	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	2012-07-24 17:25:47
Creative Commons license:	CC0

Reference information

Primary reference:

42413.

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]

Secondary references:

42414

L. V. Warren, M. L. A. Pachedo, T. R. Fairchild, M. G. Simoes, C. Riccomini, P. C. Boggiani, and A. A. Caceres. 2012. The dawn of animal skeletogenesis: Ultrastructural analysis of the Ediacaran metazoan Corumbella werneri. Geology 40(8):691-694 [W. Kiessling/U. Merkel]