Asteroceras obtusum (Sowerby) with Promicoceras planicosta (Sowerby)
Base cut freestanding display specimen. Beautifully preserved calcitic Ammonite developed out of a large nodule. Developed to the protoconch. With a Promicroceras below it. A very aesthetic specimen to grace any collection. Stunning.N.B.VERY HEAVY AT 3.7 KILOS. U.K. POSTAGE ONLY.
Jurassic, Upper Sinemurian, Obtusum Zone.
Black Ven, Charmouth / Lyme Regis, Dorset.
Ammonite : 8.5 cm diam.