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Polished Douvilleiceras Spiney Ammonite Fossils x 12 From Maintirano, Madagascar
RETAIL PRICE
A NOTE FROM NICK
A tray of 12 whole polished A grade Douvilleiceras Spiney 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.
PRODUCT DESCRIPTION
Polished Douvilleiceras Ammonite – Tulear, Madagascar
Douvilleiceras Ammonite Spiny 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, Grey, Clear, White
MOHS HARDNESS SCALE
3 to 4
PRODUCT DATA
Locality = Tulear, Madagascar
Grade = A Grade
Size = 42 - 64 mm