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Issafen Formation, Morocco - Geyer and Palmer 1995 (Cambrian of Morocco)

Where: Morocco (31.2° N, 7.9° W: paleocoordinates 62.4° S, 113.2° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Antatlasia gutta-pluviae / Sectigena zone, Issafen Formation, Atdabanian (520.0 - 516.0 Ma)

• formation-level stratigraphic resolution


• Unable to determine lithology

Collection methods: Collection contains unfigured specimens from Hupe's 1959 thesis found in storage at the University of Rennes, replicas of additional unpublished material collected by Hupe, and specimens collected by G. Choubert, K. Sdzuy, and G. Geyer.

Primary reference: G. Geyer and A. R. Palmer. 1995. Neltneriidae and Holmiidae (Trilobita) from Morocco and the problem of Early Cambrian intercontinental correlation. Journal of Paleontology 69(3):459-474 [M. Patzkowsky/P. Borkow/J. Alroy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 8974: authorized by Mark Patzkowsky, entered by Phil Borkow on 10.09.2000, edited by John Alroy

Creative Commons license: CC BY (attribution)