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Petrushevskaya 1971


Figure 88

Conically widening skeletons of Eucyrtidiidae.
I) Species, similar to the one described as Eucyrtidium articulatum Ehr., 1875 (pl. XI, fig. 3), Campanian, Eastern Urals; II, III) Amphipyndax (=Dictyomitra) uralica (Gorbovetz, 1966), Campanian, Western Siberia; IV) Amphipyndax sp., Upper Cretaceous, California, station 1144; V-VII) cephalises of 3 specimens of Cyrtolagena in various perspectives (at greater magnification than I-IV).