Upper sec., Yerba Loca Fm., Sierra del Tigre, Argentina (Ordovician of Argentina)

Where: Argentina (31.0° S, 69.0° W: paleocoordinates 33.8° S, 133.9° W)

• local area-level geographic resolution

When: Yerba Loca Formation, Caradoc (458.4 - 449.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: slope; lithified shale

• Slope sediments
• 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: G. E. Ortega, E. Brussa, and R. Astini. 1991. Nuevos hallazgos de graptolitos en la Formacion Yerba Loca y su implicancia estratigrafica, Precordillera de San Juan Argentina. Ameghiniana 28(1-2):163-178 [A. Miller/P. Novack-Gottshall/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 8884: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 02.09.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Pterobranchia
 Graptoloidea - Lasiograptidae
Orthoretiolites sp. Whittington 1954 lasiograptid
 Graptoloidea - Diplograptidae
? Orthograptus sp. Lapworth 1873 graptolite
 Graptoloidea - Dicranograptidae
Dicellograptus sp. Hopkinson 1871 graptolite