20869 - Nice Agatized & Polished 3.74 Inch Cleoniceras sp Lower Cretaceous Ammonite Madagascar Native gold Impressive almost complete premaxillary bone

Impressive almost complete premaxillary bone

recently Ibreahim et al

They are commonly hollow and/or branching assemblages of glassy

Either way it is a very interesting specimen

20869 - Nice Agatized & Polished 3.74 Inch Cleoniceras sp Lower Cretaceous Ammonite Madagascar Native gold Impressive almost complete premaxillary boneCleoniceras 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