Tucumilla Fm., Cuesta de Erquis, Bolivia ( of Bolivia)

Where: Bolivia (21.0° S, 65.0° W)

• Paleocoordinates: 33.0° S, 160.5° W (Wright 2013)

• outcrop-level geographic resolution

When: Tucumilla Formation, Tremadoc (486.5 - 477.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, green, yellow, argillaceous siltstone and sandstone

• alternating olive-green siltstone, yellowish-white to brownish sandstone and olive green 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: A. Pribyl and J. Vanek. 1980. Ordovician trilobites of Bolivia. Rozpravy Ceskoslovenske Akademie Ved. Rada Matematickych a Prirodnich Ved. Academia Praha, Prague, Czechoslovakia 90(2):1-90 [A. Miller/P. Novack-Gottshall/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 8838: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 01.09.2000

Creative Commons license: CC0 (CC0)

Taxonomic list

• Primarily trilobite taxonomy
Show authors, comments, and common names
Artiopoda
 Agnostida - Agnostidae
Micragnostus sp.
Micragnostus sp. Howell 1935
Trilobita
 Olenida - Olenidae
Parabolina sp., Leptoplastides sp., Angelina sp., Jujuyaspis sp.
Parabolina sp. Salter 1849 trilobite
Leptoplastides sp. Raw 1908 trilobite
Angelina sp. Salter 1859 trilobite
Jujuyaspis sp. Kobayashi 1936 trilobite
 Asaphida - Asaphidae
Asaphellus sp.
Asaphellus sp. Callaway 1877 trilobite
 Asaphida - Remopleurididae
Kainella sp., Richardsonella sp.
Kainella sp. Walcott 1925 trilobite
Richardsonella sp. Raymond 1924 trilobite
 Ptychopariida - Shumardiidae
Shumardia sp.
Shumardia sp. Billings 1862 trilobite
Gastropoda
 Bellerophontida - Tropidodiscidae
Tropidodiscus sp.
Tropidodiscus sp. Meek and Worthen 1866 snail
 Bellerophontida - Bucaniidae
Bucania sp.
Bucania sp. Hall 1847 snail
Rhynchonellata
 Orthida - Finkelnburgiidae
Finkelnburgia sp.
Finkelnburgia sp. Walcott 1905
Lingulata
 Lingulida - Elkaniidae
Broeggeria sp.
Broeggeria sp. Walcott 1902
Pterobranchia
 Dendroidea - Acanthograptidae
Dictyonema sp.
Dictyonema sp. Hall 1851 graptolite