Where: Argentina (31.3° S, 69.2° W: paleocoordinates 42.6° S, 125.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Los Sombreros Formation, St Davids (509.0 - 497.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified shale and lithified limestone

Size class: macrofossils

Primary reference: M. S. Beresi and J. K. Rigby. 1994. Sponges and chancelloriids from the Cambrian of western Argentina. Journal of Paleontology 68(2):208-217 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 56542: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 21.11.2005

Creative Commons license: CC BY (attribution)