Carnian ammonoid from uppermost aonoides zone ?

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Spencer G. Lucas

Venter looks trachyceratid but not ornamented. It is tiny? Maybe juvenile with our ornament, so not really identifiable?

Walter Poltnig

Trachceratids in this fauna are T. medusae and T. infundibiliforme with juvenile forms different from this one. For me this ammonite looks similar to Sirenites from striatofalcato group.