Promicroceras marstonense
Beautiful preserved 3D Ammonite on a small piece of septarian nodule. Most of the white shell still intact. Where missing the black under layer showing sutures is evident. This really is very cute indeed.
Jurassic, Upper Sinemurian, Obtusum Zone,'Ammonite Marble'.
Marston Magna, Somerset.
Ammonite : 2.1 cm diam.
