Gaspé Peninsula, Percé, White Head Formation Unit 4 (Ordovician to of Canada)

Where: Québec, Canada (48.5° N, 64.2° W: paleocoordinates 22.2° S, 36.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: 4 Member (White Head Formation), Ashgill to Ashgill (449.5 - 433.4 Ma)

• "Unit" 4

• member-level stratigraphic resolution

Environment/lithology: gray, green, silty limestone and yellow shale

• Environmental call by T. Hanson.
• "[G]reenish-brown to grey sublithographic to silty limestone, with some coarse bioclastic limestone, in beds to about 8 cm, with yellow-weathered shaly interbeds to 4 cm."

Size classes: macrofossils, microfossils

Collection methods: Trepostome bryozoa and dalmanellacid brachiopods also present.

Primary reference: W. B. Skidmore and P. J. Lespérance. 1981. Gaspé Peninsula, Percé area. In P. J. Lespérance (ed.), Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group Guidebook 1:31-40 [S. Holland/T. Hanson/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 24505: authorized by Steven Holland, entered by Tori Hanson on 08.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Conodonta
 Panderodontida - Panderodontidae
Panderodus sp.
Panderodus sp. Ethington 1959 conodont
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus suberectus
Drepanoistodus suberectus Branson and Mehl 1933 conodont
 Ozarkodinida -
Gamachignathus ensifer
 Prioniodontida - Balognathidae
Amorphognathus ordovicicus
Amorphognathus ordovicicus Bergström and Bergström 1996 conodont
[entered as Amorphognathus ordovicius]
 Prioniodontida -
Oulodus rohneri, Phragmodus undatus
Trilobita
 Phacopida - Cheiruridae
Ceraurinus sp., Ceraurinus icarus
Ceraurinus sp. Barton 1913 trilobite
Ceraurinus icarus Billings 1860 trilobite
 Phacopida - Encrinuridae
Encrinurus perceensis
Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella ? gigantea
Sowerbyella ? gigantea Schuchert and Cooper 1930
 Orthotetida - Triplesiidae
? Bicuspina sp.
? Bicuspina sp. Havlicek 1950
Anthozoa
 Stauriida - Streptelasmatidae
Lobocorallium vaurealensis
 Favositida - Favositidae
Paleofavosites capax
Paleofavosites capax Billings 1866 tabulate coral
 Heliolitida - Proporidae
Propora aff. speciosa
Propora aff. speciosa tabulate coral
 Heliolitida - Halysitidae
Catenipora sp.
Catenipora sp. Lamarck 1816 tabulate coral