Footpath to Parcha locality, bn Angosto de Lampazar and Abra de Sococha. 150 m (Ordovician of Argentina)

Where: Salta, Argentina (24.6° S, 65.7° W: paleocoordinates 43.7° S, 128.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kiaerograptus supremus graptolite zone, Lower Member (Saladillo Formation), Tremadoc (485.4 - 477.7 Ma)

• Lower Tremadoc

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, nodular shale

• The Saladillo Formation is 180 m thick in the Parcha section and in that area consists of shaly mudstones with intercalated thin sandstone beds at its base.

Size class: macrofossils

Preservation: mold/impression

Collection methods: acetic,

• The nodules have been slightly etched with dilute acetic acid to free the moulds from their attached shells.

Primary reference: E. Villas, Z. A. Herrera, and G. Ortega. 2009. Early orthid brachiopods from the Tremadocian (Lower Ordovician) of Northwestern Argentina. Journal of Paleontology 83:604-613 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185919: authorized by Pete Wagner, entered by Pete Wagner on 24.05.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Orthida - Euorthisinidae
Notorthisina musculosa Villas et al. 2009
 Orthida - Nanorthidae
"Nanorthis bifurcata" = Lampazarorthis bifurcata
"Nanorthis bifurcata" = Lampazarorthis bifurcata Harrington 1937
 Orthida - Plectorthidae
Lipanorthis santalaurae Benedetto and Carrasco 2002