Where: Salta, Argentina (26.0° S, 65.0° W: paleocoordinates 32.8° S, 38.3° W)

• coordinate estimated from map

• local area-level geographic resolution

When: La Yesera Formation, Albian to Albian (113.0 - 93.9 Ma)

• The samples yielding cicatricose spores belong to the top of the Brealito Member and the Don Bartolo Member.

•Does not distinguish which member takes each sample.

Environment/lithology: lacustrine; lithified, sandy sandstone and lithified shale

Size class: microfossils

Preservation: soft parts, original sporopollenin

Collection methods: chemical, mechanical, hydrochloric, hydroflouric

• The physical and chemical extraction of palynomorphs was performed in the Paleopalynologic Laboratory at IANIGLA. Samples were treated with hydrochloric and hydrofluoric acids following standard palynologic processing techniques (Volkheimer and Melendi,1976). Residues were sieved with a 10 μm nylon mesh-sieve and slides were examined under a light microscope (Olympus BX50 with an adapted digital camera) for qualitative and quantitative assessment of palynomorphs. Specimens were located on the slide using an England Finder graticule. The material was also analysed with scanning electron microscopy at LABMEM and MACN. The slides are stored at the Paleopalynologic Collection at IANIGLA (MPLP: Mendoza-Paleopalinoteca-Laboratorio-Paleopalinología).

Primary reference: P. L. Narváez, N. Mego, and M. B. Prámparo. 2012. Cretaceous cicatricose spores from north and central-western Argentina. Taxonomic and biostratigraphic discussion. Palynology 37:1-15 [C. Jaramillo/J. Moreno]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 150173: authorized by Carlos Jaramillo, entered by Jessica Moreno on 03.09.2013

Creative Commons license: CC BY (attribution)