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	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.

See also

• Earth sciences portal
• Canada portal
• Paleontology portal

• List of fossiliferous stratigraphic units in Quebec