white lias

The series consists of grey marls, black paper shales containing much pyrites and a celebrated bone bed, the Cotham landscape marble, and the White Lias limestone, yielding Ostrea Liassica and Cardium Rhaeticum.

Rhaetic beds, the so-called “White Lias,” are exposed in Pinhay Bay.

These white beds were called by William Smith the White Lias, and they have been shown by Mr. Charles Moore to belong to a formation similar to one in the Rhaetian Alps of Bavaria, to which Mr. Gumbel has applied the name of Rhaetic.