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Trapezotheca Sysoev, 1957

Source

Rank

genus

Names

1

in Orlov (Ed. ) 1958, Osnovy Paleont. VI. Molluski, Ammonoidei etc. : 187.

Orthothecidae Syssoiev, 1957
- Trapezotheca Sysoev, 1957
  - Trapezotheca aemulus
  - Trapezotheca bicostata