Where: Paraguay (25.4° S, 57.3° W: paleocoordinates 44.8° S, 142.4° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Vargas Pena Shale Formation, Llandovery (443.7 - 428.2 Ma)
• Harrington provisionally places this formation as Llandovery. Grahn and Gutierrez (2001, PBDB ref. 7139), on the basis of chitinizoan zonation, conclude that it spans Rhuddanian to Telychian ages.
• formation-level stratigraphic resolution
Environment/lithology: marine; micaceous claystone and argillaceous sandstone
Collection methods: I have combined lists from type locality (responsible for the great majority of taxa) and from the "poor and scarce outcrops." See PBDB collection 908 for additional taxa.
Primary reference: H. J. Harrington. 1972. Silurian of Paraguay. Geological Society of America Special Paper 133:41-50 [M. Foote/M. Foote/M. Foote] more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 25570: authorized by Michael Foote, entered by Michael Foote on 18.09.2002, edited by Pete Wagner and Austin Hendy
Creative Commons license: CC BY (attribution)