Periphaena decora Ehrenberg 1873

Periphaena decora Ehrenberg, 1873 (Fig. 17H) Periphaena decora Ehrenberg, 1873: 246; 1875: pl. 28, fig. 6. — Riedel 1957: 258, pl. 62, fig. 1. — Sanfilippo & Riedel 1973: 523, pl. 8, figs 8-10, pl. 27, figs 2-5. — Petrushevskaya & Kozlova 1972: 523, pl. 14, figs 1, 2. GEOGRAPHIC DISTRIBUTION. — Atlantic Ocean, Gulf of Mexico, Voronesh Anticline. STRATIGRAPHIC RANGE. — Eocene-Oligocene (Petrushevskaya & Kozlova 1972); early-middle Eocene (Sanfilippo & Riedel 1973); (?)late Paleoceneearly Eocene (this study). REMARKS The image of Periphaena paleogenica sensu Kozlova (1999: 87, pl. 13, fig. 4) from early Eocene of Western Siberia is similar to our species.
Published as part of Popova, Irina M., Baumgartner, Peter O., Guex, Jean, Tochilina, Svetlana V. & Glezer, Zoya I., 2002, Radiolarian biostratigraphy of Paleogene deposits of the Russian Platform (Voronesh Anticline), pp. 7-59 in Geodiversitas 24 (1) on page 41, DOI: 10.5281/zenodo.5375608
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