Astarte omalii peelensis n. ssp., Architectonica neerlandica n. sp. and Chrysallida andersoni n. sp. from the Miocene of the Netherlands and Western Germany

In the Miocene deposits of the Peel region in the Netherlands about 1500 specimens of a species of Astarte have been found, which agree with the Pliocene Astarte omalii de la Jonkaire, 1823. Although some specimens perfectly agree with some juvenile Pliocene forms, the bulk of the material shows typical features, which consistently differ from those of the Pliocene form and its variations. I consider the Miocene form as a subspecies of Astarte omalii, for which I propose the name: