Quebrada Calquis, Atacama (Jurassic of Chile)

Where: Chile (28.0° S, 70.0° W: paleocoordinates 28.3° S, 32.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithology not reported

Size class: macrofossils

Preservation: mold/impression, original calcite, replaced with silica

Collection methods: mechanical, acetic,

Primary reference: M. Aberhan. 1994. Early Jurassic Bivalvia of northern Chile. Part I. Subclasses Palaeotaxodonta, Pteriomorphia, and Isofilibranchia. Beringeria 13:3-115 [M. Aberhan/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95443: authorized by Martin Aberhan, entered by Sabine Nürnberg on 16.04.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• bivalves only
Bivalvia
 Nuculanida - Nuculanidae
Nuculana (Praesaccella) ovum Sowerby 1825 pointed nut clam
 Pectinida - Neitheoidae
Weyla (Weyla) alata von Buch 1838 scallop