| York River Formation | |
|---|---|
| Stratigraphic range: Devonian | |
| Type | Geological formation |
| Unit of | Gaspé Sandstones |
| Underlies | Battery Point Formation |
| Location | |
| Region | Quebec |
| Country |  Canada |
The York River Formation is a geologic formation in Quebec. It preserves fossils dating back to the Devonian period.
The basal unit of the Gaspé Sandstones, the York River Formation is wholly marine and the Battery Point Formation rests unconformably above it.
| 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] | |
| 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. | ||
A bone bed is any geological stratum or deposit that contains bones of whatever kind. Inevitably, such deposits are sedimentary in nature. Not a formal term, it tends to be used more to describe especially dense collections such as Lagerstätte. It is also applied to brecciated and stalagmitic deposits on the floor of caves, which frequently contain osseous remains.
The Horseshoe Canyon Formation is a stratigraphic unit of the Western Canada Sedimentary Basin in southwestern Alberta. It takes its name from Horseshoe Canyon, an area of badlands near Drumheller.
The Detroit River Group is a geologic group in Michigan and Ohio. It preserves fossils dating back to the Devonian period.
The Georgian Bay Formation is a geologic formation in Michigan and Ontario. It preserves fossils dating back to the Ordovician period. The type locality of the formation is on East Meaford Creek, south shore of Nottawasaga Bay, Georgian Bay.
The Tarratine Formation is a geologic formation in Maine. It preserves fossils dating back to the Devonian period.
The Cobourg Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period. Technically the formation extends into New York State with Canadian section called Lindsay Formation. The formation was named by Raymond (1921). The Cobourg formation was estimated to be have a total thickness of about 70 m.
The Attawapiskat Formation is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
The Battery Point Formation is a geologic formation in Quebec. It preserves fossils dating back to the early Emsian to early Eifelian the lower Devonian period.
The Escuminac Formation is a geologic formation in Quebec. It preserves fossils dating back to the Frasnian, in the Devonian period.
The Gaspe Bay Sandstone Group is a geologic group in Quebec. It preserves fossils dating back to the Devonian period.
The Campbellton Formation is a geologic formation in New Brunswick. It preserves fossils dating back to the latest Pragian and Emsian of the Devonian period.
The Bird Fiord Formation is a geologic formation in Nunavut. It preserves fossils dating back to the Devonian period.
Bear Rock is a geologic formation in the Sahtu Region of the Northwest Territories located across the mouth of the Great Bear River from Tulita.
The Pender Formation is a geologic formation in British Columbia. It preserves fossils dating back to the Cretaceous period. Organisms that have been recovered from this formation include indeterminate Elasmosaurids, Mosasaurids, and a Chelonioidean, as well as the sea turtle Desmatochelys and the Mosasaurine Kourisodon.
The Pimienta Formation is a geologic formation in Mexico. It preserves fossils dating back to the Tithonian-Berriasian. The formation is considered laterally equivalent to the La Casita Formation. The Metriorhynchid Cricosaurus vignaudi is known from the formation.
Gyracanthides is an extinct genus of acanthodian gnathostome, known from Devonian to Early Carboniferous.
The Grenville Province is a tectonically complex region, in Eastern Canada, that contains many different aged accreted terranes from various origins. It exists southeast of the Grenville Front and extends from Labrador southwestern to Lake Huron. It is bounded by the St. Lawrence River/Seaway to the southeast.
The Superior Craton is a stable crustal block covering Quebec, Ontario, and southeast Manitoba in Canada, and northern Minnesota in the United States. It is the biggest craton among those formed during the Archean period. A craton is a large part of the Earth's crust that has been stable and subjected to very little geological changes over a long time. The size of Superior Craton is about 1,572,000 km2. The craton underwent a series of events from 4.3 to 2.57 Ga. These events included the growth, drifting and deformation of both oceanic and continental crusts.
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