Cambridge Greensand


The Cambridge Greensand is a geological formation in England whose strata date back to the late Albian of the Early Cretaceous to early Cenomanian of the Late Cretaceous. It forms the transitional bed between the Gault Formation and the Chalk Group in the vicinity of Cambridgeshire, and technically forms the lowest member bed of the West Melbury Marly Chalk Formation.

Description

The lithology is made out of glauconitic marl, with a concentration of phosphatic nodules and bones at the base. Dinosaur remains are among the fossils that have been recovered from the formation.

Vertebrate paleofauna

Birds

Ornithischians

Ammonites