PBDB Collection

Upper Belen Fmn., Phacopina aspera bed, La Paz Province, Bolivia (Devonian of Bolivia)

Also known as Lager der Ph. aspera

Where: La Paz, Bolivia (15.5° S, 68.0° W: paleocoordinates 63.8° S, 83.5° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Upper Belen Member (Belen Formation), Emsian (407.6 - 393.3 Ma)

• Age call is based on Isaacson and Sablock (1987) (PBDB ref. 9680). Nested within Ph. aspera bed is the Metacryphaeus cornutus bed.

• member-level stratigraphic resolution

Environment/lithology: marine; sandstone and shale

• Facies complex is described, including sandstones, shales, and siltstones.

Primary reference: R. Wolfart. 1968. Die Trilobiten aus dem Devon Boliviens und ihre Bedeutung fuer Stratigraphie und Tiergeographie. Beihefte zum Geologischen Jahrbuch 74:5-201 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 37055: authorized by Michael Foote, entered by Michael Foote on 26.02.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus of monograph is trilobites. Other taxa sometimes mentioned as well.

Show authors, comments, and common names

Brachiopoda
-	Brachiopoda indet. Brachiopoda indet. Cuvier 1805
Cephalopoda
Orthoceratoidea -	Orthocerida indet. Orthocerida indet. Kuhn 1940
Trilobita
Proetida - Otarionidae	Otarion dereimesi Otarion dereimesi trilobite
Lichida - Lichidae	"Acanthopyge balliviani" = Belenopyge balliviani "Acanthopyge balliviani" = Belenopyge balliviani Kozlowski 1923 trilobite
Phacopida - Acastidae	Acastoides verneuili Acastoides verneuili trilobite
Phacopida - Calmoniidae	Metacryphaeus cornutus n. sp., Metacryphaeus boulei, Metacryphaeus sp., Metacryphaeus venustus n. sp., Metacryphaeus tuberculatus, Calmonia curvioculata n. sp., Malvinella haugi, Bouleia dagincourti, Phacopina (Vogesina) aspera n. sp., Schizostylus brevicaudatus Metacryphaeus cornutus n. sp. trilobite Metacryphaeus boulei trilobite Metacryphaeus sp. Reed 1907 trilobite Metacryphaeus venustus n. sp. trilobite Metacryphaeus tuberculatus Kozlowski 1923 trilobite Calmonia curvioculata n. sp. trilobite Malvinella haugi trilobite Bouleia dagincourti trilobite Phacopina (Vogesina) aspera n. sp. trilobite Schizostylus brevicaudatus trilobite
Phacopida - Phacopidae	"Phacops salteri" = Viaphacops salteri "Phacops salteri" = Viaphacops salteri Kozlowski 1923 trilobite
Crinoidea
-	Crinoidea indet. Crinoidea indet. Miller 1821 Sea lily
Scyphozoa
Conulariida -	Conulariida indet. Conulariida indet. Miller and Gurley 1896 jellyfish