Sella (Ordovician of Bolivia)

Where: Tarija, Bolivia (21.4° S, 64.7° W: paleocoordinates 45.1° S, 129.7° W)

• local area-level geographic resolution

When: Baltograptus minutus graptolite zone, Sella Formation, Arenig (478.6 - 466.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, green, yellow, sandy, calcareous shale and limestone

• yellow-green limy shale and gray sandy limestone

Size class: macrofossils

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: L. Branisa. 1965. Los fosiles guias de Bolivia: I. Paleozoico. Boletin de Servicio Geologico de Bolivia. La Paz, Bolivia 6:1-282 [A. Miller/P. Novack-Gottshall/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 9107: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 22.09.2000, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Pterobranchia
 Graptoloidea - Dichograptidae
Didymograptus sp. McCoy 1851 graptolite
Eocrinoidea
  - Lingulocystidae
Lingulocystis boliviensis n. sp.2 Sprinkle 1973
Bivalvia
 Solemyida - Ctenodontidae
Ctenodonta sp.1 Salter 1852 clam
 Heteroconchia - Lipanellidae
"Cosmogoniophorina sp." = Cosmogoniophorina1
"Cosmogoniophorina sp." = Cosmogoniophorina1 Isberg 1934 clam
Cephalopoda
 Ellesmerocerida - Bathmoceratidae
Eothinoceras sp. Ulrich et al. 1944
Gastropoda
 Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818 snail
Rhynchonellata
 Orthida - Plectorthidae
Desmorthis segnis n. sp.1 Havlicek and Branisa 1980
 Orthida - Glyptorthidae
Glyptorthis imbrex n. sp.1 Havlicek and Branisa 1980
Trilobita
 Asaphida - Asaphidae
Hoekaspis sp. Kobayashi 1937 trilobite
 Trinucleida - Raphiophoridae
Lonchodomas sp. Angelin 1854 trilobite
 Trinucleida - Trinucleidae
Trinucleus sp. Murchison 1839 trilobite
 Phacopida - Calymenidae
"Synhomalonotus sp." = Neseuretus
"Synhomalonotus sp." = Neseuretus Hicks 1873 trilobite