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Staufenia staufensis (Oppel,1858)
 

Staufenia staufensis (Oppel,1858)


Ludwigia

9cm. This species gives its name to the Staufensis Bank, which appears in certain sections of the Bradfordensis Subzone of the Murchisonae Zone, Upper Aalenian, Middle Jurassic. It is quite common to find them in the Wutach area, but the stone is so hard and the discus-shaped ammonites so fragile, that it's difficult to extricate a well-preserved specimen without damageing it in some way. This one lost much of its shell, exposing the impressions of the sutures on the calcite core and also giving a view into the crystallized chambers of the phragmocon.

From the album:

Middle Jurassic Ammonites from Southern Germany

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