Where: Spain (39.6° N, 3.9° W: paleocoordinates 30.4° S, 100.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pusa Shale Formation, Ediacaran (635.0 - 541.0 Ma)

• 700-2000m thick with carbonaceous discs at about 350-450m above the base of the formation.

• group of beds-level stratigraphic resolution

Environment/lithology: submarine fan; lithified shale

Size class: mesofossils

Preservation: adpression, trace, original carbon

Collection methods: Specimens occur in at least 3 different ways:

•1. Touching or loosely clustered bodies that do not overlap and lack evidence for coloiality.

•2. Discrete bodies without evidence for colonial association, often as sparse elements in pure mudstone or with carbonaceous fragments.

•3. Long, convoluted chains up to 80mm long, apparently constructed of conjoined discs.

Primary reference: M. D. Brasier, A. Perjon, and M. A. De San Jose. 1979. Discovery of an important fossiliferous Precambrian-Cambrian sequence in Spain. Estudios Geologicos 35:379-383 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10573: authorized by Mark Patzkowsky, entered by Phil Borkow on 24.05.2001

Creative Commons license: CC BY (attribution)