Acoite Fm., Cerro Tafna and La Rinconada, Argentina (Ordovician of Argentina)

Where: Argentina (22.0° S, 66.0° W: paleocoordinates 44.0° S, 128.7° W)

• local area-level geographic resolution

When: Acoite Formation, Arenig (478.6 - 466.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: submarine fan; lithified, yellow siltstone and shale

• yellow siltstone intercalated with 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. F. Leanza and B.A.J. Baldis. 1974. Tafnaspidae, nueva familia de Komaspidacea (Trilobita) del Ordovicico del Norte de Argentina. Actas del primer congreso Argentino de paleontologia y bioestratigrafia 1:125-132 [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9022: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 15.09.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Istragraptus sp.
Trilobita
 Proetida - Telephinidae
"Tafnaspis sp." = Carolinites
"Tafnaspis sp." = Carolinites Kobayashi 1940 trilobite
Pterobranchia
 Graptoloidea - Phyllograptidae
Phyllograptus sp.
Phyllograptus sp. Hall 1858 graptolite
 Graptoloidea - Didymograptidae
"Didymograptus deflexus" = Baltograptus deflexus
"Didymograptus deflexus" = Baltograptus deflexus Elles and Wood 1901 graptolite