Roxby Formation
The Roxby Formation, previously known as the Permian Upper Marls, is a formation from the Guadalupian-Early Triassic of eastern England (formation dies out at Nottinghamshire). The formation is made up largely of mudstone and siltstone, reddish brown, with subordinate sandstone.
Q736917
formation
Concept
Q1077376
Guadalupian
Concept
Q1075885
Early Triassic
TIME
Q23092
Nottinghamshire
LOC
Q97194726
Roxby Formation
LOC
instance of