20867 - Nice Agatized & Polished 5.44 Inch Cleoniceras sp Lower Cretaceous Ammonite Madagascar Onchopristis Bones In the following link you

In the following link you could find an article that deals with the study of a population of isolated teeth that come from this sector

Unpublished

Type: Cyrtoceratites arduennensis

Tooth 8: 63 mm (2

both in its outer shell and in its chambers and internal structure

20867 - Nice Agatized & Polished 5.44 Inch Cleoniceras sp Lower Cretaceous Ammonite Madagascar Onchopristis Bones In the following link youCleoniceras 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