PBDB Collection

Philipsburg, St. Armand limestone (Ordovician of Canada)

Where: Quebec, Canada (45.0° N, 73.1° W: paleocoordinates 30.0° S, 60.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Oepikodus communis conodont zone, Naylor Ledge Formation, Cassinian (482.3 - 470.0 Ma)

• St. Armand Formation is early Floian after Kröger & Landing, 2009

Environment/lithology: limestone

Size class: macrofossils

Preservation: original aragonite, original calcite, replaced with calcite

Reposited in the GSC, USNM

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 99224: authorized by Björn Kröger, entered by Björn Kröger on 02.11.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Cephalopoda
Ellesmerocerida - Protocycloceratidae	Protocycloceras affine², Protocycloceras abnorme², Protocycloceras xerxes², Protocycloceras geronticum², Protocycloceras philipsburgense² Protocycloceras affine² Ulrich et al 1944 Protocycloceras abnorme² Ulrich et al. 1944 Protocycloceras xerxes² Billings 1865 Protocycloceras geronticum² Ulrich et al. 1944 Protocycloceras philipsburgense² Ulrich et al. 1944
Ellesmerocerida - Ellesmeroceratidae	Bassleroceras perseus¹ Bassleroceras perseus¹ Billings 1865
Tarphycerida - Tarphyceratidae	Campbelloceras mcgerriglei, Pionoceras pomponium, Pionoceras vokesi Campbelloceras mcgerriglei Ulrich et al. 1942 Pionoceras pomponium Billing 1862 Pionoceras vokesi Ulrich et al. 1942
Tarphycerida - Trocholitidae	Trocholitoceras latum, Trocholitoceras walcotti, Trocholitoceras juvenicostatum, Trocholitoceras philipsburgense Trocholitoceras latum Ulrich et al. 1942 Trocholitoceras walcotti Hyatt 1894 Trocholitoceras juvenicostatum Ulrich et al. 1942 Trocholitoceras philipsburgense Ulrich et al. 1942
Multiceratoidea - Cyclostomiceratidae	Cyclostomiceras cassinense³ Cyclostomiceras cassinense³ Whitfield 1886

¹Kröger and Landing 2008; ²Ulrich et al. 1944; ³Ulrich et al. 1943