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 (466.0 - 463.5 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

 Phacopida - Calymenidae
Synhomalonotus sp. Pompeckj 1898 trilobite
 Asaphida - Asaphidae
Hoekaspis sp. Kobayashi 1937 trilobite
Basilicus sp. Salter 1849 trilobite
"Basiliella sp." = Basilicus (Basiliella) Kobayashi 1934 trilobite
 Lingulida - Lingulidae
Lingula sp. BruguiƩre 1797
 Orthocerida - Baltoceratidae
"Baltoceras sp." = Cochlioceras
"Baltoceras sp." = Cochlioceras Eichwald 1860
 Ellesmerocerida -
 Ellesmerocerida - Cyclostomiceratidae
 Orthoceratoidea - Protocycloceratidae
Protocycloceras sp. Hyatt and Zittel 1900
 Conodontophorida -
 Diplograptoidea - Diplograptidae
? Diplograptus sp. diplograptoid
 Graptoloida -
Holmograptus sp. graptoloid
Paraglossograptus tentaculatus Hall 1858 graptoloid