Figure 34
Paleogene Clathromitrinae.
I) Tripodiscium sibirica (Kozlova), Eocene, Western Siberia; II) Tripodiscium sp. B, Eocene, Western Siberia; III) Tripodiscium sp. C, similar to representatives of the genus Pseudodictyophimus, Eocene, Western Siberia; IV) Tripodiscium sp. D., similar, in the structure of its thorax, to T. sibirica, Upper Eocene, California, 1795; V-VII) Tripodiscium (=Tripilidium) clavipes (Clark et Campbell, 1945) with varying thoracic forms.
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