York River Formation
The York River Formation is a geologic formation in Quebec. It preserves fossils dating back to the Devonian period.
| York River Formation | |
|---|---|
| Stratigraphic range: Devonian | |
| Type | Geological formation |
| Unit of | Gaspé Sandstones |
| Underlies | Battery Point Formation |
| Location | |
| Region | Quebec |
| Country | .svg.png.webp){kind=small} Canada |
Description
The basal unit of the Gaspé Sandstones, the York River Formation is wholly marine and the Battery Point Formation rests unconformably above it.
Fossil content
Vertebrates
| Acanthodians | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Ankylacanthus | A. incurvus | Anse-à-Brillant, Route 197.[1] | Fin spines.[1] | A possible gyracanthid, formerly known as Gyracanthus incurvus.[1] | |
| A. convexus | Mont Lyall and southwest of Mont Tuzo, Gaspé Peninsula.[1] | Fin spines.[1] | A possible gyracanthid, formerly known as Gyracanthus convexus.[1] | ||
| Chondrichthyans | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Doliodus | D. latispinosus | Upper part of the formation.[2] | Fin spines.[2] | Also known from the Campbellton and Battery Point formations.[2] | |
Invertebrates
| Bivalves | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Montanaria | M. honquedoensis | [3] | |||
| Cnidarians | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Procteria | P. (Pachyprocteria) vermifera | Upper part of the formation.[4] | A tabulate coral. | ||
References
- Burrow, Carole J.; Turner, Susan; Desbiens, Sylvain; Miller, Randall F. (2008-08). "Early Devonian putative gyracanthid acanthodians from eastern CanadaInternational Geoscience Programme (IGCP) Contribution 491, Middle Palaeozoic Vertebrate Biogeography, Palaeogeography, and Climate". Canadian Journal of Earth Sciences. 45 (8): 897–908. doi:10.1139/e08-033. ISSN 0008-4077.
- Burrow, Carole J.; Turner, Susan; Maisey, John G.; Desbiens, Sylvain; Miller, Randall F. (2017). "Spines of the stem chondrichthyan Doliodus latispinosus (Whiteaves) comb. nov. from the Lower Devonian of eastern Canada". Canadian Journal of Earth Sciences. 54 (12): 1248. ISSN 0008-4077.
- Desbiens, Sylvain (February 1, 1994). "Le bivalve Montanaria Spriestersbach, 1909: habitat et morphologie d'une nouvelle espèce emsienne de la Formation de York River de Gaspé, Québec". Canadian Journal of Earth Sciences. 31 (2): 381–392.
- PlusquellecYves; DesbiensSylvain; GourvennecRémy (2011-11-25). "Procteria (Pachyprocteria) vermifera n. sp., an unusual Hicetes-bearing species of tabulate coral from the lower Eifelian of the Gaspé Sandstones Group, Rimouski County (Quebec, Canada)". Canadian Journal of Earth Sciences. doi:10.1139/e11-058.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014.
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