B4-Portezuelo Ancho Pass, Bed 1286 (Jurassic of Argentina)

Where: Mendoza, Argentina (35.1° S, 70.1° W: paleocoordinates 35.2° S, 30.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Puchenque Formation, Late/Upper Pliensbachian (189.6 - 183.0 Ma)

• within the Fanninoceras ammonite Zone

• bed-level stratigraphic resolution

Environment/lithology: marine; green, sandy mudstone

• green sandy mudstone with interbedded shell beds

Size class: macrofossils

Collection methods: surface (in situ),

Primary reference: S. E. Damborenea. 1987. Early Jurassic Bivalvia of Argentina: Part 1, Stratigraphical introduction and superfamilies Nuculanacea, Arcacea, Mytilacea and Pinnacea. Palaeontographica A199(1-3):23-111 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 33737: authorized by Arnold Miller, entered by Karen Layou on 06.08.2003, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
 Seguenzioidea - Eucyclidae
? Ambercyclus isabelensis Ferrari et al. 2014 snail
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
 Pectinida - Neitheoidae
Weyla unca Philippi 1899 scallop
Weyla bodenbenderi Behrendsen 1891 scallop
 Pectinida - Limidae
Plagiostoma sp. Sowerby 1814 file clam
Ctenostreon sp. Eichwald 1862 file clam
 Ostreida - Pinnidae
Pinna cf. folium Young and Bird 1822 oyster