ammonites
N Anticosti Island, Laframboise patch reefs (Ordovician of Canada)

Also known as Reef 1411

Where: Quebec, Canada (49.4° N, 62.3° W: paleocoordinates 23.4° S, 37.6° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Normalograptus persculptus graptolite zone, Laframboise Member (Ellis Bay Formation), Gamachian (449.5 - 443.7 Ma)

• member-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• max. thickness 8-10 m, max. diameters 50 m

Size class: macrofossils

Primary reference: P. Copper. 2001. Reefs during the multiple crises towards the Ordovician-Silurian boundary: Anticosti Island, eastern Canada, and worldwide. Canadian Journal of Earth Sciences 38(2):153-171 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 80615: authorized by Wolfgang Kiessling, entered by Uta Merkel on 30.04.2008