Gaspé Peninsula, Amphitheatre, White Head Formation Unit 4: Ashgill, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Conodonta
- Prioniodontida
|
||||||||||
|
Aphelognathus politus
|
1 element | |||||||||
|
Oulodus rohneri
|
139 elements | |||||||||
|
Pseudooneotodus mitratus
(Moskalenko 1973)
|
1 element | |||||||||
|
Conodonta
- Prioniodontida
- Balognathidae
|
||||||||||
|
Amorphognathus ordovicicus
Bergström and Bergström 1996
|
27 elements | |||||||||
|
Conodonta
- Prioniodontida
|
||||||||||
|
Phragmodus undatus
|
414 elements | |||||||||
|
Conodonta
- Panderodontida
- Panderodontidae
|
||||||||||
|
Panderodus gibber
|
7 elements | |||||||||
|
Panderodus liratus
|
10 elements | |||||||||
|
Panderodus spp.
|
30 elements | |||||||||
|
Panderodus gracilis
(Branson and Mehl 1933)
|
179 elements | |||||||||
|
Belodina dispanea
|
6 elements | |||||||||
| "Belodina" dispanea s.f. | ||||||||||
|
Belodina profunda
|
8 elements | |||||||||
| "Belodina" profunda s.f. | ||||||||||
|
Belodina compressa
(Branson and Mehl 1933)
|
5 elements | |||||||||
|
Conodonta
- Protopanderodontida
- Drepanoistodontidae
|
||||||||||
|
Drepanoistodus suberectus
(Branson and Mehl 1933)
|
53 elements | |||||||||
|
? Paroistodus mutatus
|
41 elements | |||||||||
|
Conodonta
- Protopanderodontida
- Protopanderodontidae
|
||||||||||
|
? Staufferella sp.
Sweet et al. 1975
|
1 element | |||||||||
|
Trilobita
- Phacopida
- Cheiruridae
|
||||||||||
|
Remipyga sp.
Whittington 1954
|
||||||||||
| synonym of Ceraurinus | ||||||||||
|
Anthozoa
- Stauriida
- Streptelasmatidae
|
||||||||||
|
Lobocorallium vaurealensis
|
||||||||||
|
Anthozoa
- Favositida
- Favositidae
|
||||||||||
|
Paleofavosites capax
(Billings 1866)
|
||||||||||
|
Protozoa
|
||||||||||
|
Hercochitina crickmayi
|
||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Québec |
| Coordinates: | 48.7° North, 65.8° West (view map) | ||
| Paleocoordinates: | 23.6° South, 40.3° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 5 | ||
| *Period: | Late/Upper Ordovician | *Epoch: | Ashgillian |
| *International age/stage: | Rawtheyan | *Local age/stage: | Richmondian |
| Key time interval: | Ashgill | ||
| Age range of interval: | 449.60000 - 443.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | White Head | Member: | 4 | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: "Unit" 4. | |||||
Lithology and environment
| Primary lithology: | gray,green silty "limestone" |
| Secondary lithology: | yellow "shale" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: "[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. | |
| Environment: | deep subtidal indet. |
Taphonomy
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | chemical,field collection |
| Collection size: | 922 individuals |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 24975 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | J. Alroy | Research group: | marine invertebrate |
| Created: | 2002-08-23 17:14:41 | Last modified: | 2005-02-15 19:59:09 |
| Access level: | the public | Released: | 2002-08-23 17:14:41 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6965. | 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] |