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Unknown fm., Southern Macarena mountains, Columbia (Ordovician of Colombia)

Where: Colombia (2.0° N, 74.0° W: paleocoordinates 2.0° N, 74.0° W)

• local area-level geographic resolution

When: Tremadoc (488.3 - 478.6 Ma)

• Unknown fm. name

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, silty shale

• gray argillite, silty and micaceous

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: H. J. Harrington and M. Kay. 1951. Cambrian and Ordovician faunas of Eastern Colombia. Journal of Paleontology 25(5):655-668 [A. Miller/P. Novack-Gottshall/J. Alroy] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 8864: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 02.09.2000

Creative Commons license: CC BY (attribution)