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

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

• Paleocoordinates: 39.9° S, 62.7° W (Wright 2013)

When: NN4 nannofossil zone, Saladar Member (Gran Bajo del Gualicho Formation), Langhian (16.0 - 13.8 Ma)

• late Early Miocene-earliest Middle Miocene. Top layers therefore should be Langhian

• group of beds-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, argillaceous wackestone

• Las areniscas bioclásticas friables de los niveles más altos son portadoras de

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 179580: authorized by Pete Wagner, entered by Pete Wagner on 20.06.2016

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Neogastropoda - Volutidae
Adelomelon posei
Adelomelon posei Scarabino et al. 2004 volute
 Cerithioidea - Turritellidae
"Spirocolpus" adapicis
Bivalvia
 Pectinida - Pectinoidae
Amusium rorii, Nodipecten salis
 Lucinida - Lucinidae
Lucinidae "indet."
Lucinidae "indet." Fleming 1828 clam
 Hiatellida - Hiatellidae
Panopea cf. quemadensis, Panopea aff. nucleus
Panopea aff. nucleus Ihering 1899 clam
 Cardiida - Veneridae
Dosinia (Dosinia) salarensis, "Tawera canalei" = Ameghinomya argentina
"Tawera canalei" = Ameghinomya argentina Ihering 1897 venus clam
Echinoidea
 Clypeasteroida - Abertellidae
Abertella gualichensis
Abertella gualichensis Martinez et al. 2005 sand dollar
 Clypeasteroida - Monophorasteridae
Monophoraster darwini