Despensa Fm., Quebrada de Vaca Norte and Rio Despense (Sierra de Aguilar), Argen ( of Argentina)

Where: Argentina (23.0° S, 66.0° W: paleocoordinates 45.0° S, 127.7° W)

• local area-level geographic resolution

When: Despensa Formation, Tremadoc (486.5 - 477.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lagoonal; lithified, gray, green sandstone and shale

• Listed as "subtidal channels and tidal flats due to traces"
• feldspathic grey-green sandstone intercalated with dark gray shale

Collection methods: JA: marked by Novack-Gottshall without explanation as omitting some genera, some macrofossils, some microfossils, and species names, but apparently complete

Primary reference: R. N. Alonso, S. Malanca, and R.J. Sureda. 1982. Consideraciones sobre el Ordovicico el la Sierra de Aguilar, Jujuy, Argentina. Revista del Instituto de Ciencas Geologicas 5:15-37 [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 9023: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 15.09.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Dendroidea - Acanthograptidae
Dictyonema sp.
Dictyonema sp. Hall 1851 graptolite
Trilobita
 Asaphida - Asaphidae
Niobina sp.
Niobina sp. Lake 1946 trilobite