Gran Bajo del Gualicho, Basal Layers (Miocene of Argentina)

Where: Río Negro, Argentina (40.4° S, 65.3° W: paleocoordinates 40.9° S, 59.9° W)

When: NN4 nannofossil zone, Saladar Member (Gran Bajo del Gualicho Formation), Burdigalian (20.4 - 16.0 Ma)

• late Early Miocene-earliest Middle Miocene. Basal layers therefore should be Burdigalian

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

• Many lithologies reported: but it's not clear whence the fossils came

Size class: macrofossils

Primary reference: V. A. Reichler. 2010. Estratigrafía y paleontología del Cenozoico marino del Gran Bajo y Salinas del Gualicho, Argentina y descripción de 17 especies nuevas. Andean Geology 37(1):177-219 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 179578: authorized by Pete Wagner, entered by Pete Wagner on 20.06.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Arcidae
 Arcida - Glycymerididae
"Glycymerita camaronesia" = Glycymeris (Glycymerita), "Glycymerita cuevensis" = Glycymeris (Glycymerita)
"Glycymerita camaronesia" = Glycymeris (Glycymerita) clam
"Glycymerita cuevensis" = Glycymeris (Glycymerita) clam
 Pectinida - Pectinoidae
 Carditida - Carditidae
Purpurocardia sp. Maxwell 1969 clam
Venericor (Neovenericor) austroplata Gardner and Bowles 1939 clam
 Cardiida - Veneridae
 Cardiida - Cardiidae
"Hedecardium" "sp. 2" Marwick 1944 cockle
"Hedecardium" "sp. 1" Marwick 1944 cockle
 Hiatellida - Hiatellidae
 Lucinida - Lucinidae
Lucinidae sp. Fleming 1828 clam
 Nuculida -
 Neogastropoda - Buccinidae
 Neogastropoda - Mitridae
"Mitra (Fusimitra) carlosi" = Fusimitra, Austroimbricaria brugnii
"Mitra (Fusimitra) carlosi" = Fusimitra mitre shell
 Neogastropoda - Volutidae
Adelomelon posei Scarabino et al. 2004 volute
 Neogastropoda - Muricidae
 Neogastropoda - Turridae
 Neogastropoda - Conidae
Conus aff. infulatus Hoerle 1976 cone shell
 Stromboidea - Struthiolariidae
"Perissodonta ameghinoi" = Struthiolarella ameghinoi
"Perissodonta ameghinoi" = Struthiolarella ameghinoi Ihering 1897 snail
 Ficoidea - Ficidae
Ficus distans Sowerby 1846 fig shell
 Naticoidea - Naticidae
Magnatica hansi moon snail
 Cypraeoidea - Cypraeidae
Siphocypraea posei Figueiras 1985 cowry
 Tonnoidea - Tonnidae
 Tonnoidea - Cassidae
 Sorbeoconcha - Turritellidae
Torcula magna turret shell
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell