| Anse Maranda Formation | |
|---|---|
| Stratigraphic range: Cambrian | |
| Type | Formation |
| Location | |
| Region |  Quebec |
| Country |  Canada |
The Anse Maranda Formation is a geologic formation in the Quebec Appalachians. [1] It preserves fossils dating back to the early Cambrian period. [2]
The Oriskany Sandstone is a Middle Devonian age unit of sedimentary rock found in eastern North America. The type locality of the unit is located at Oriskany Falls in New York. The Oriskany Sandstone extends throughout much of the Appalachian Basin.
The Chepultepec Formation, is an Early Ordovician-age geological formation in the Appalachian regions of Eastern North America. Also known as the Chepultepec Dolomite, it is a unit of the Upper Knox Group, overlying the Copper Ridge Dolomite and underlying the Longview-Kingsport-Mascot sequence. The Chepultepec Formation is a primarily limestone and dolomite formation, the earliest formation of the Ordovician period in its area. Further north, it is equivalent to the Stonehenge Formation of the Beekmantown Group. The formation was first described from Allgood, Alabama, and has also been found in Tennessee and Virginia. Allgood was originally named "Chepultepec", providing its name to the formation as well. In Virginia, the Chepultepec Formation has a habit of forming large natural arches, including Natural Tunnel in Scott County and Natural Bridge in Rockbridge County.
The Sonyea Group is a geologic group in the northern part of the Appalachian Basin. It preserves fossils dating back to the Devonian period.
The Grande Greve Formation is a geologic formation in Quebec. It preserves fossils dating back to the Devonian period.
The Malbaie Formation is a geologic formation in Quebec. It preserves fossils dating back to the Devonian period.
The Black River Formation is a geologic formation in Quebec, Canada and Michigan, United States. It preserves fossils dating back to the Ordovician period.
The Broken Skull Formation is a geologic formation in Quebec. It preserves fossils dating back to the Ordovician period.
The Ellis Bay Formation is a geologic formation in Quebec. It preserves fossils dating back to the Ordovician period.
The Vaureal Formation is a geologic formation in Quebec. It preserves fossils dating back to the Ordovician period.
The Lorraine Formation is a geologic formation in Quebec. It preserves fossils dating back to the Ordovician period.
The White Head Formation is a geologic formation in Quebec. It preserves fossils dating back to the Ordovician period.
The Romaine Formation is a geologic formation in Quebec. It preserves fossils dating back to the Ordovician period.
The West Point Formation is a geologic formation in Quebec. It preserves fossils dating back to the Silurian period.
The Cabano Formation is a geologic formation in Quebec. It preserves fossils dating back to the Silurian period.
The Anse Cascon Formation is a geologic formation in Quebec. It preserves fossils dating back to the Silurian period.
The La Vieille Formation is a geologic formation in Quebec. It preserves fossils dating back to the Silurian period.
The Anse à Pierre-Loiselle Formation is a geologic formation in Quebec. It preserves fossils dating back to the Silurian period.
The Bic Conglomerate Formation is a geologic formation in Quebec. It preserves fossils dating back to the Cambrian period.
The Levis Formation is a geologic formation in Quebec. It preserves fossils dating back to the Cambrian period.
The Huntersville Chert or Huntersville Formation is a Devonian geologic formation in the Appalachian region of the United States. It is primarily composed of mottled white, yellow, and dark grey chert, and is separated from the underlying Oriskany Sandstone by an unconformity. The Huntersville Chert is laterally equivalent to the Needmore Shale, which lies north of the New River. It is also laterally equivalent to a sandy limestone unit which is often equated with the Onondaga Limestone. These formations are placed in the Onesquethaw Stage of Appalachian chronostratigraphy, roughly equivalent to the Emsian and Eifelian stages of the broader Devonian system.
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