Redmond Formation

Redmond Formation Stratigraphic range: Early Cenomanian 99.7–94.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Geologic map and outcrops of Redmond Formation
Type	Formation
Underlies	Glacial deposits
Overlies
Thickness	Up to 1.5 m (4.9 ft)
Lithology
Primary	Argillite
Location
Coordinates	54°42′N 66°48′W / 54.7°N 66.8°W / 54.7; -66.8Coordinates: 54°42′N 66°48′W / 54.7°N 66.8°W / 54.7; -66.8
Approximate paleocoordinates	46°24′N 27°18′W / 46.4°N 27.3°W / 46.4; -27.3
Region	Newfoundland and Labrador
Country	Canada
Extent
Type section
Named for	Redmond No. 1 mine
Redmond Formation (Canada)

The Redmond Formation is a geologic formation in Newfoundland and Labrador. It preserves fossils dating back to the Cretaceous period. It was a thin (up to 1.5 metres (4.9 ft) thick) and restricted unit traced for 152 metres (499 ft) in a single mine (Redmond No. 1) in Labrador, overlying Paleoproterozoic rocks, with large amounts of rubble, probably as a result of graben subsidence within the Labrador trough. Argillite facies within the formation have produced a diverse flora and insect assemblage.^[1]

Fossil content[]

Mesoraphidiidae[]

Palaeoleontidae[]

Susumaniidae[]

Coleoptera[]

• Coleoptera indet.

Labradorocoleidae[]

Cupedidae[]

• Cupedidae indet.
• Haliplidae indet.
• Peltodytes sp.

Tettigarctidae[]

• ^[2]

Isoptera[]

See also[]

• List of fossiliferous stratigraphic units in Newfoundland and Labrador

References[]

Bibliography[]

• Demers Potvin, Alexandre; Jacek Szwedo; Cassia Paragnani, and Hans Larsson. 2020. First North American occurrence of hairy cicadas discovered in a Late Cretaceous Cenomanian exposure from Labrador, Canada. Acta Palaeontologica Polonica 65. 85–98. Accessed 2020-07-31.
• Demers Potvin, Alexandre V., and Hans C.E. Larsson. 2019. Palaeoclimatic reconstruction for a Cenomanian‐aged angiosperm flora near Schefferville, Labrador. Palaeontology 62. 1027–1048. doi:10.1111/pala.12444 ISSN 0031-0239