Staufenia sehndensis & Ancolioceras opalinoides
S.sehndensis is the larger one measuring 12.5cm. The other measures 6.5cm. From the upper Aalenian in the Wutach valley. S.sehndensis is proving to be more common for this region as first thought. Since the recent publication of the first undisputed ID, a good number of this species have suddenly started cropping up in old collections. I found this one however just 2 weeks ago.
From the album:
Middle Jurassic Ammonites from Southern Germany
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