lithostratigraphic unit
geologic unit denoting a specific body of rock based on its lithologic or stratigraphic characteristics
Collie Sub-basin
sedimentary basin in Western Australia
bed
stratigraphic subdivison
formation
higher stratigraphic unit
geological formation
body of rock identified by lithic characteristics and stratigraphic position; it is usually but not necessarily tabular and is mappable at the Earth's surface or traceable in the subsurface. Smaller than a subgroup
horizon
term in geology
group
in geology, a stratigraphic unit, smaller than a supergroup and larger than a subgroup
member
lithostratigraphic rank
sequence
geological events, processes, or rocks, arranged in chronological order