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 (485.4 - 477.7 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)

Taxonomic list

Trilobita
 Asaphida - Asaphidae
"Megalaspis sp." = Megistaspis, "Basiliella sp." = Basilicus (Basiliella)
"Megalaspis sp." = Megistaspis Jaanusson 1956 trilobite
"Basiliella sp." = Basilicus (Basiliella) Kobayashi 1934 trilobite
 Asaphida - Ceratopygidae
Tropidopyge sp. Harrington and Kay 1951 trilobite
 Asaphida - Nileidae
Symphysurus sp. Goldfuss 1843 trilobite
 Asaphida - Raphiophoridae
Raphiophorus sp. Angelin 1854 trilobite
Rhynchonellata
 Orthida - Eoorthidae
? Apheoorthis sp. Ulrich and Cooper 1936