San Juan Formation, Talacasto, Lenodus variabilis zone (Ordovician of Argentina)

Where: Argentina (31.1° S, 68.6° W: paleocoordinates 36.1° S, 131.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lenodus variabilis zone, San Juan Formation, Arenig (478.6 - 466.0 Ma)

• Upper Arenig

Environment/lithology: shallow subtidal; limestone

• General sedimentological features of the bryozoans-bearing limestones indicate a shallow subtidal environment in middle to distal ramp settings
• Limestone

Size classes: mesofossils, microfossils

Primary reference: M. G. Carrera and A. Ernst. 2010. Darriwilian bryozoans from the San Juan Formation (Ordovician), Argentine Precordillera. Ameghiniana 47(3):343-354 [W. Kiessling/M. Krause/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 144334: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 03.05.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Stenolaemata
 Trepostomata - Trematoporidae
 Trepostomata - Aisenvergiidae