Eye-Catching Douvilleiceras Ammonite

Douvilleiceras mammilatum

Order Ammonoidea

Geological Time: Upper Early Cretaceous, Albian Stage

Size (25.4 mm = 1 inch): Ammonite fossil is 35 mm across

Fossil Site: Tulear, Madagascar

Fossil Code: 2986

Price: $55.00

Douvilleiceras AmmoniteDescription: This spectacular ammonite is a Douvilleiceras mammillatum from Madagascar which has been polished to show the wonderful amber Calcite just below the outer shell The intricate suturing pattern which provided strength to the ammonite is well evident. Note as well the linear structure evident at the midline. This is the siphuncule, an integral part of the ammonite’s “ballast system”. The ammonite moved freely at depth by pumping water in an out by means of the siphuncule. There is a small amount of residual pearlescent shell remaing on the reverse. It is a stunning example of an ammonite from the Albian (112 m.y.a) deposits of Madagascar, one that is sure to be the centerpiece of any ammonite collection.

Fossil Purchase

click pictures to enlarge

Douvilleiceras mammilatum

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