Alnif, Bani Group (Ordovician of Morocco)

Where: Morocco (31.1° N, 5.1° W: paleocoordinates 82.8° S, 79.0° E)

• coordinate stated in text

When: Upper Tiouririne Formation (Bani Group), Rawtheyan (455.8 - 445.6 Ma)

• "Upper formation of the upper Bani Group (Hirnantian, Upper Ordovician) [redeposited from the upper Tiouririne Formation (upper Katian, Upper Ordovician)].", in Ernst et al. (2015)

• formation-level stratigraphic resolution

Environment/lithology: marine; bioturbated sandstone

• "composed of bioturbated sandstones (lower formation of the upper Bani

•Group) and glaciogenic conglomeratic and arenitic sediments", in Ernst et al. (2015)

Size classes: macrofossils, mesofossils

Primary reference: A. Ernst, A. Jiménez-Sánchez, and L. Baidder. 2015. Bryozoan fauna of the Upper Ordovician (Katian) of Alnif, Morocco. Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg 2015 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 173818: authorized by Björn Kröger, entered by Björn Kröger on 16.10.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Stenolaemata
 Trepostomida - Amplexoporidae
Monotrypa sp. Nicholson 1879
Radiotrypa alnifensis Ernst et al. 2015
 Esthonioporata - Revalotrypidae
Revalotrypa ramosa Ernst et al. 2015
 Cryptostomata - Arthrostylidae
Heminematopora gaetula Ernst et al. 2015