Increíble amonita con suturas septales internas expuestas - Completar - Argonauticeras besairei

Descripción
Increíble amonita con suturas septales internas expuestas - Completar - Argonauticeras besairei
Jurásico (145.0-201,3 millones de años) - Madagascar


Amazing Ammonite Argonauticeras besairei from early Cretaceous of Madagascar.

This specimen show surface view of the conch with the suture line slightly shining through the shell wall.

Suture lines are normally visible only on the external part of the shell.
In this case the amazing preservation of the shell and an expert preparation made possible to observe the fractal structure of the hidden septum.

A painstaking preparation, many hours to remove all the matrix with extreme care as the shell is very fragile, make it possible, make visible all the hidden details of the internal structure.

An amazing example of the frilled septal lobe margin as demonstration for how complex( fractals geometric sequence) ammonite septa can be.
Fantastic mineralization, beautiful reddish colours as light pass trought.

Ammonite is 7.7 cm diameter, 3.7 cm thick.

A "must piece" for all the Ammonite Lovers.

Detalles del lote
Espécimen
Increíble amonita con suturas septales internas expuestas
Objeto
Completar
Nombre científico
Argonauticeras besairei
Origen
Madagascar
Periodo geológico
Jurásico (145.0-201,3 millones de años)
Estado
En buen estado
Tratamiento
Conservado
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