Where: Neuquen, Argentina (39.2° S, 70.6° W: paleocoordinates 37.4° S, 30.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Cuyo Group, Toarcian to Toarcian (182.7 - 170.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; black, gray shale and sandy shale

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 33835: authorized by Arnold Miller, entered by Karen Layou on 07.08.2003

Creative Commons license: CC BY (attribution)