Ammonite - Concha iridiscente - Cleoniceras besaiei - 91.7×73.6×25.6 mm

Descripción
Ammonite - Concha iridiscente - Cleoniceras besaiei - 91.7×73.6×25.6 mm
CRETÁCICO - Cretácico inferior (100,5 - 145,0 millones de años) - Tulear (Madagascar)

This beautiful ammonite with the shell in smooth, thin bands is a Jurassic Cleoniceras of Madagascar that preserves the original mother-of-pearl iridescent shell.

This is a consequence of the light passing through the various layers of aragonite and conchiolin deposited by the ammonite while it was alive.

The lack of acidity in the depositional environment allowed them to be preserved as you see here. Please notice the play of colour when the viewer's appearance changes.

The Ammonite has not undergone any gluing work, the fracture lines on the shell are internal and do not affect the integrity of the fossil.

High scientific and aesthetic value.
Excellent in any collection, for study or exhibition.

A great sample!

100% original fossil.

Detalles del lote
Espécimen
Ammonite
Objeto
Concha iridiscente
Nombre científico
Cleoniceras besaiei
Origen
Tulear (Madagascar)
Periodo geológico
CRETÁCICO - Cretácico inferior (100,5 - 145,0 millones de años)
Estado
En buen estado
Dimensiones
91.7×73.6×25.6 mm
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