20315 - Cut & Polished 1.46 Inch Cleoniceras sp Lower Cretaceous Ammonite Madagascar - Agatized Mawsonia (Coelacanth) Great association of two Prognathodon

Great association of two Prognathodon anceps (Mosasaur) teeth

Specimen without preparation or cleaning

Cheloniidae) from the Palaeocene phosphates of Morocco (Oulad Abdoun Basin

Neumayr (1875) - Ammonite

One of the main reasons is their natural wear due to the vegetarian diet

20315 - Cut & Polished 1.46 Inch Cleoniceras sp Lower Cretaceous Ammonite Madagascar - Agatized Mawsonia (Coelacanth) Great association of two PrognathodonCleoniceras sp, Parona and Bonarelli 1897 (ammonite) Cephalopoda Ammonitida Cleoniceratidae Cleoniceras is a rather involute, high whorled hoplitid from the Lower to basal Middle Albian of Europe, Madagascar, and Transcaspian region. The shell has a generally small umbilicus, arched to acute venter, and typically at some growth stage, falcoid ribs that spring in pairs from umbilical tubercles, usually disappearing on the outer whorls. These ammonites