Promicroceras planicosta (Sowerby),Asteroceras marstonensis Spath 1925 & Cymbites sp.
Free standing block of the famous 'Ammonite Marble' from Marston Magna. One whole surface covered with white shelled 3D Ammonites. 9 complete Promicroceras with 1 Asteroceras and 1 Cymbites. Very attractive display specimen.
Jurassic, Upper Sinemurian, Obtusum Zone. 'Ammonite Marble'.
Marston Magna, Somerset.
Specimen : 9 x 9.5 x 4.3 cm.
