Chacay Melehué, bed 28 (Jurassic of Argentina)

Where: Neuquen, Argentina (37.3° S, 70.5° W: paleocoordinates 34.6° S, 32.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Eurycephalites gottschei ammonoid zone, Los Molles Formation, Early/Lower Callovian (164.7 - 161.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified shale

• Record rhythmic deposition at the depocentre and shelf-edge to slope.

Size class: macrofossils

Collection methods: Repository: Laboratorio de Paleontologia y Biocronologia (abbreviated LPB) of the Institute de Fisiografia y Geologia, Universidad Nacional de Rosario.

Primary reference: H. Parent. 1998. Upper Bathonian and lower Callovian ammonites from Chacay Melehué (Argentina). Acta Palaeontologica Polonica 43:69-130 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 158983: authorized by Matthew Clapham, entered by Matthew Clapham on 23.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Perisphinctidae
Choffatia jupiter
Choffatia jupiter Steinmann 1881 ammonite
 Ammonitida - Sphaeroceratidae
Eurycephalites gottschei
Eurycephalites gottschei Tornquist 1898 ammonite