North of Port au Choix (Ordovician of Canada)

Where: Newfoundland and Labrador, Canada (50.7° N, 57.3° W: paleocoordinates 31.7° S, 49.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Boat Harbour Formation (St. George Group), Jeffersonian (485.4 - 470.0 Ma)

• Logan's F and G. PJW: This is Boat Harbour formation now.

• group-level stratigraphic resolution

Environment/lithology: marine; lithified, calcareous limestone

Size class: macrofossils

Preservation: cast, original aragonite, replaced with calcite

Primary reference: E. O. Ulrich, A. F. Foerste, A. K. Miller and W. M. Furnish. 1942. Ozarkian and Canadian cephalopods, Part I: Nautilicones. Geological Society of America Special Papers 37:1-157 [B. Kröger/B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 98438: authorized by Björn Kröger, entered by Björn Kröger on 06.10.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Tarphycerida - Estonioceratidae
 Tarphycerida - Tarphyceratidae
 Tarphycerida - Trocholitidae
Litoceras calciferum Billings 1865