Fig. 12 in A new type of shell malformation caused by epizoans in Late Jurassic ammonites from Central Russia

Fig. 12. Clusters of pits on the surface of the craspeditid ammonite Kachpurites fulgens (Trautschold, 1861) shell from the Late Volgian, Kachpurites fulgens Zone, Eganovo ocality, Moscow region, Central Russia, MSU 118/1. A. General view, three clusters which repeatedly occurred on the shell marked by lines: ventro-lateral and dorso-lateral clusters marked by dotted line, mid-lateral cluster marked by solid line. B. Two groups of pits on the anterior ventro-lateral portion of the shell. They are very similar to each other and likely were formed by the same epizoans during the subsequent stages of shell growth.