York River Formation

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York River Formation
Stratigraphic range: Devonian
TypeGeological formation
Unit ofGaspé Sandstones
UnderliesBattery Point Formation
Location
RegionQuebec
Country Canada

The York River Formation is a geologic formation in Quebec. It preserves fossils dating back to the Devonian period.

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.

See also

References

  1. ^ a b c d e f 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.
  2. ^ a b c 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.
  3. ^ 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.
  4. ^ 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.


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