Polished Mix Douvilleiceras and Cleoniceras Ammolite Ammonite Fossils x 15 From Maintirano, Madagascar

A NOTE FROM NICK 
A tray of 15 mixed whole polished Douvilleiceras spined Ammonites. Perfect with segmentation aperture intact. Also called "Tractor" ammonites in Madagascar from their appearance looking similar to the rear wheel of a Tractor. Skilfully polished revealing the segmentation patterns in detail, while retaining their full natural formations. And 3 semi-opalized Cleoniceras Ammonites. Nice mixed tray with some A grade beauties included.

RODUCT DESCRIPTION 
Polished Douvilleiceras Ammonite – Tulear, Madagascar 
Douvilleiceras Ammonite Spiney Ammonite Fossils from the Lower Albian (Early Cretaceous) from the Maintirano, Mahajanga Basin region in Madagascar. These display thick, heavily ribbed heteromorph shells with tight initial spiral followed by open U-shaped bend and final hook. Ribs are strong, rounded, and bear prominent lateral and ventral tubercles in rows; shell preserved in original tan brown Calcite with occasional iridescent nacre flashes. Classic Madagascan Douvilleiceras with segmentation suture showing.

PRODUCT MINERALS
Calcite, Agate, Iron Oxides

PRODUCT FEATURES
Polished Exterior, Intricate Suture Patterns, Fossil, Decorative

PRODUCT COLOUR
Brown, Orange, Gray, Clear, White

MOHS HARDNESS SCALE
3 to 4

PRODUCT DATA
Locality = Tulear, Madagascar
Grade = Very Good to A Grade
Size = 38 - 83 mm