Shale of the Ananea Formation, Lagune Cololo, Bolivia (Silurian of Bolivia)

Where: Bolivia (15.5° S, 68.7° W: paleocoordinates 49.9° S, 116.8° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Ananea Formation, Silurian (443.4 - 419.2 Ma)

• "On the basis of this somewhat inconclusive fauna we conclude that the Ananea Formation is largely Silurian, although it may include some Devonian."

• formation-level stratigraphic resolution

Environment/lithology: marine; shale

Primary reference: G. Laubacher, A. J. Boucot, and J. Gray. 1982. Additions to Silurian stratigraphy, lithofacies, biogeography and paleontology of Bolivia and southern Peru. Journal of Paleontology 56(5):1138-1170 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 25083: authorized by Michael Foote, entered by Michael Foote on 27.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Modiomorphida - Carydiidae
"Nucula boliviensis" = Carydium boliviensis
"Nucula boliviensis" = Carydium boliviensis Swartz 1925 clam
 Nuculida - Nuculidae
Nucula sp. Lamarck 1799 nut clam
 Nuculanida - Cucullellidae
Nuculites sp. Conrad 1841 clam
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp. von Schlotheim 1820
Trilobita
 Phacopida - Homalonotidae
Homalonotidae indet. Chapman 1890 trilobite
Trimerus linares trilobite