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

Where: Québec, Canada (48.7° N, 65.8° W: paleocoordinates 23.6° S, 40.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: 4 Member (White Head Formation), Ashgill (449.5 - 443.7 Ma)

• "Unit" 4.

• member-level stratigraphic resolution

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

• "[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." Lithology from W. B. Skidmore and P. J. Lespérance. 1981. Gaspé Peninsula, Percé area. Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group Guidebook 1:31-40. Edited by P. J. Lespérance.

Size classes: macrofossils, microfossils

Collection methods: chemical,

Primary reference: G. S. Nowlan. 1981. Late Ordovician - Early Silurian conodont biostratigraphy of the Gaspé Peninsula - a preliminary report. In P. J. Lespérance (ed.), Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group Guidebook 2:257-291 [S. Holland/T. Hanson/S. Bruning]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 24975: authorized by Steven Holland, entered by Tori Hanson on 23.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Phacopida - Cheiruridae
"Remipyga sp." = Ceraurinus
"Remipyga sp." = Ceraurinus Barton 1913 trilobite
Conodonta
 Panderodontida - Panderodontidae
Panderodus gibber, Panderodus liratus, Panderodus spp., Panderodus gracilis, Belodina dispanea, Belodina profunda, Belodina compressa
Panderodus spp. Ethington 1959 conodont
Panderodus gracilis Branson and Mehl 1933 conodont
Belodina dispanea conodont
"Belodina" dispanea s.f.
Belodina profunda conodont
"Belodina" profunda s.f.
Belodina compressa Branson and Mehl 1933 conodont
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus suberectus, ? Paroistodus mutatus
Drepanoistodus suberectus Branson and Mehl 1933 conodont
 Protopanderodontida - Protopanderodontidae
? Staufferella sp.
? Staufferella sp. Sweet et al. 1975 conodont
 Prioniodontida -
Pseudooneotodus mitratus, Oulodus rohneri, Aphelognathus politus
Pseudooneotodus mitratus Moskalenko 1973 conodont
Oulodus rohneri conodont
 Prioniodontida - Balognathidae
Amorphognathus ordovicicus
Amorphognathus ordovicicus Bergström and Bergström 1996 conodont
 Prioniodontida -
Phragmodus undatus
Anthozoa
 Favositida - Favositidae
Paleofavosites capax
Paleofavosites capax Billings 1866 tabulate coral
 Stauriida - Streptelasmatidae
Lobocorallium vaurealensis
Protozoa
  -
Hercochitina crickmayi