Quebrada Pan de Azúcar, Atacama (Jurassic of Chile)

Where: Chile (26.0° S, 70.5° W: paleocoordinates 29.3° S, 32.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Sinemurian (199.3 - 190.8 Ma)

• Sinemurian (based on the co-occurrence with Arietites sp. and Arnioceras sp.), probably Obtusum Zone

• 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,

• collected since 1966

Primary reference: P. Prinz. 1991. Mesozoische Korallen aus Nordchile. Palaeontographica Abteilung A 216:147-209 [W. Kiessling/W. Kiessling/W. Kiessling]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95096: authorized by Martin Aberhan, entered by Sabine Nürnberg on 06.04.2010, edited by Bethany Allen and Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Actinastreidae
Actinastrea gibbosa Duncan 1867 stony coral
 Scleractinia - Montlivaltiidae
Montlivaltia spp. Lamouroux 1821 stony coral
 Scleractinia - Stylophyllidae
Phacelostylophyllum rugosum Laube 1865 stony coral
Reptilia
 Ichthyosauria -
Bivalvia
 Trigoniida - Myophorelloidae
Frenguelliella poultoni1 Leanza 1993 clam
 Trigoniida - Groeberellidae
Groeberella neuquensis3 Groeber 1924 clam
 Cardiida - Cardiidae
Cardium sp.3 Linnaeus 1758 cockle
 Arcida - Parallelodontidae
Grammatodon sp.3 Meek and Hayden 1860 clam
 Ostreida - Bakevelliidae
Gervillia sp.3 Defrance 1820 oyster
Cephalopoda
 Ammonitida - Arietitidae
Coroniceras sp.3 Hyatt 1867 ammonite
? Arnioceras sp.3 Hyatt 1867 ammonite