22134 - Cut & Polished 5.50 Inch Cleoniceras sp Lower Cretaceous Ammonite Madagascar - Agatized Nileus Northwest Africa 8725
Yard notes & kiln story
Description
Northwest Africa 8725
SQUAMATA OPPEL
It is a well preserved tooth
Fe/Mn=45-46
I sent a sample to the Laboratory of Applied Petrology of the Department of Earth Sciences of the University of Alicante
22134 - Cut & Polished 5.50 Inch Cleoniceras sp Lower Cretaceous Ammonite Madagascar - Agatized Nileus Northwest Africa 8725Cleoniceras 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