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[edit]

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[edit]

Vertebrates[edit]

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[edit]

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[edit]

References[edit]

  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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