Capillas Fm., Garrapatal and Rio las Capillas, Argentina (Ordovician of Argentina)

Where: Argentina (24.0° S, 65.0° W: paleocoordinates 41.4° S, 131.8° W)

• local area-level geographic resolution

When: Capillas Formation, Early/Lower Llanvirn (468.0 - 461.1 Ma)

• formation-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, gray, green, sandy shale and limestone

• dark gray limestone within dark gray to green-gray sandy 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: G. Cecioni. 1953. Contribucion al conocimiento de los Nautiloideos-Eopaleozoicos Argentinos. Parte I: Protocycloceratidae-Cyclostomiceratidae. Boletin del Museo Nacional de Historia Natural 26(2):55-107 [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9026: 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
Conodonta
 Prioniodontida - Polyplacognathidae
Eoplacognathus suecicus
Eoplacognathus suecicus Bergström 1971 conodont
Pterobranchia
 Graptoloidea - Glossograptidae
Paraglossograptus tentaculatus
Paraglossograptus tentaculatus Hall 1858 graptolite
 Graptoloidea - Diplograptidae
? Diplograptus sp.
 Graptoloidea - Sinograptidae
Holmograptus sp.
Holmograptus sp. graptolite
Cephalopoda
 Ellesmerocerida - Protocycloceratidae
Protocycloceras sp.
 Multiceratoidea - Cyclostomiceratidae
Paracyclostomiceras sp.
 Orthocerida - Baltoceratidae
"Baltoceras sp." = Cochlioceras, Belloceras sp.
"Baltoceras sp." = Cochlioceras Eichwald 1860
Lingulata
 Lingulida - Lingulidae
Lingula sp.
Lingula sp. Bruguiére 1797
Trilobita
 Asaphida - Asaphidae
Hoekaspis sp., Basilicus sp., "Basiliella sp." = Basilicus (Basiliella)
Hoekaspis sp. Kobayashi 1937 trilobite
Basilicus sp. Salter 1849 trilobite
"Basiliella sp." = Basilicus (Basiliella) Kobayashi 1934 trilobite
 Phacopida - Calymenidae
"Synhomalonotus sp." = Neseuretus
"Synhomalonotus sp." = Neseuretus Hicks 1873 trilobite