Unnamed fm., Iskay and Mokho, Bolivia (Ordovician of Bolivia)

Where: Bolivia (20.0° S, 66.0° W: paleocoordinates 44.0° S, 128.4° W)

• local area-level geographic resolution

When: Early/Lower Llandeilo (466.0 - 460.9 Ma)

• Unnamed fm.

• formation-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified sandstone

• fine-grained, mica-rich arkosic sandstone

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: S. C. Finney and L. Branisa. 1984. Two new Ordovician graptolites from Bolivia. Geological Magazine 121(4):357-366 [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9108: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 22.09.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Pterobranchia
 Graptoloidea - Lasiograptidae
Gymnograptus sp. lasiograptid