A2-Arroyo La Laguna, Bed 429a, San Juan (Jurassic of Argentina)

Where: San Juan, Argentina (32.3° S, 70.0° W: paleocoordinates 32.8° S, 31.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: El Cholo Formation, Pliensbachian (190.8 - 182.7 Ma)

• formation also known as Puesto Araya

• bed-level stratigraphic resolution

Environment/lithology: marine; calcareous sandstone and sandy limestone

• fine calcareous sandstones and sandy limestones, with tuff grains and several 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 33696: authorized by Arnold Miller, entered by Karen Layou on 05.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Trigoniida - Myophorelloidae
? Myophorella sp.
? Myophorella sp. Bayle 1878 clam
Anthozoa
 Scleractinia - Montlivaltiidae
? Montlivaltia sp.
? Montlivaltia sp. Lamouroux 1821 stony coral