Aluminé + 8 Km. (Oligocene of Argentina)

Where: Neuquén, Argentina (39.2° S, 71.0° W: paleocoordinates 40.6° S, 63.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Rancahué Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

Environment/lithology: terrestrial; lithified breccia

• The Rancahué Formation consists of basalts, breccias and volcaniclastic conglomerates with intercalated tuffaceous levels, containing in situ angiosperm trunks at different outcrops of the unit, as well as petrified fern stems.

Size class: macrofossils

Preservation: permineralized, original cellulose

Primary reference: E. I. Vera. 2010. Oligocene ferns from the Rancahué Formation (Aluminé, Neuquén, Argentina): Cuyenopteris patagoniensis nov. gen., nov. sp. (Polypodiales: Blechnaceae/Dryopteridaceae) and Alsophilocaulis calveloi Menéndez emend. Vera (Cyatheales: Cyatheaceae). Geobios 43:465-478 [C. Jaramillo/J. Ceballos/J. Moreno]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140136: authorized by Carlos Jaramillo, entered by Juliana Ceballos on 02.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

• The holotype of Alsophilocaulis calveloi is housed in the palaeobotanical collection of the Museo Argentino de Ciencias Naturales ‘‘Bernardino Rivadavia’’ (Buenos Aires, Argentina)under the catalogue number BA PB 7696.
Pteridopsida
 Cyatheales - Cyatheaceae