Boat Harbour section, Middle member (Ordovician of Canada)

Where: Newfoundland, Canada (51.6° N, 55.9° W: paleocoordinates 32.5° S, 50.7° W)

• coordinate estimated from map

When: Hystricurus oculilunatus trilobite zone, Cove West Member (Boat Harbour Formation), Stairsian (485.4 - 478.6 Ma)

• "below the "pebble bed" ", in Boyce 1986. PJW: originally entered as Middle Member, but this is base of formation & there is no "middle" member.

Environment/lithology: limestone

Size classes: macrofossils, mesofossils

Primary reference: W. D. Boyce. 1979. Further developments in western Newfoundland Cambro-Ordovician biostratigraphy. Current Research 5-10 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 196438: authorized by Björn Kröger, entered by Björn Kröger on 14.09.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pentamerida - Clarkellidae
 Ellesmerocerida - Ellesmeroceratidae
Bassleroceras sp. Ulrich and Foerste 1936
 Proetida - Hystricuridae
Pachycranium sp. Ross 1951 trilobite
Hyperbolochilus sp. Ross 1951 trilobite
Hystricurus sp. Raymond 1913 trilobite
 Proetida - Bathyuridae
"Parahystricurus (cf. Jeffersonia) mediacrista" = Benthamaspis mediacrista
"Parahystricurus (cf. Jeffersonia) mediacrista" = Benthamaspis mediacrista Cullison 1944 trilobite
 Asaphida - Asaphidae
Parabellefontia sp. Hintze 1953 trilobite