Allenby Formation

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Allenby Formation
Stratigraphic range: 52.5–48 Ma
Type Geological formation
Sub-units Princeton Chert
Area 300 km².[1]
Thickness 1860-2100 m.[1]
Primary Fluvial deposits
Other shale–sandstone, coal–breccia, and coal–chert
Coordinates 49°22.6′N 120°32.8′W / 49.3767°N 120.5467°W / 49.3767; -120.5467Coordinates: 49°22.6′N 120°32.8′W / 49.3767°N 120.5467°W / 49.3767; -120.5467
Region British Columbia
Country Canada
Type section
Named for Allenby, British Columbia (Shaw, 1952)
See also: Princeton Chert

The Allenby formation is a sedimentary rock formation deposited during the early to early Middle Eocene. It consists of conglomerates, sandstones with interbedded with shales and coal. The coal seams contain an abundance of insect, fish and plant fossils, particularly in the Princeton Chert.[1]

The following fossil genera and species have been described from the Allenby formation:

Orontium wolfei is one example of many fossils that can be found in the Allenby formation.