Where: Chubut, Argentina (45.7° S, 67.5° W: paleocoordinates 46.6° S, 60.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Chenque Formation, Late/Upper Oligocene to Late/Upper Oligocene (28.4 - 16.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithified sandstone

Size class: mesofossils

Preservation: soft parts

Collection methods: bulk, chemical, hydrochloric, hydroflouric

Primary reference: V. D. Barrera. 1992. Muricingulisporis chenquensis, una nueva especie de espora de Pteridophyta del terciario de Patagonia, Argentina. Ameghiniana 29(4):347-351 [C. Jaramillo/J. Ceballos]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136170: authorized by Carlos Jaramillo, entered by Juliana Ceballos on 21.11.2012

Creative Commons license: CC BY (attribution)