Superorder Hyolithoidea

V. A. Syssoiev

1958

Chapter

184-190

Find it at:

Taxa discussed in this work:

• Circotheca
• Sulcavitidae
• Trapezotheca
• Trapezovitus
• Trapezovitus sinscus

Taxonomy:

• Trapezotheca aemulus belongs to Trapezotheca - Syssoiev (1958)
• Trapezovitus sinscus belongs to Trapezovitus - Syssoiev (1958)