Theocotyle Riedel & Sanfilippo, 1970

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), Geodiversitas 24 (1), pp. 7-59 : 50

Genus Theocotyle Riedel & Sanfilippo, 1970

Theocotyle venezuelensis Riedel & Sanfilippo, 1970 ( Fig. 16M )

Theocotyle venezuelensis Riedel & Sanfilippo, 1970: 525 , pl. 6, figs 9, 10; pl. 7, figs 1, 2; 1971: 740, pl. 1, fig. 11. — Sanfilippo et al. 1985: 685, figs 25.4a-c.

Cyrtophormis alta – Kozlova 1999: 155, pl. 30, fig. 7 (not 9); pl. 46, fig. 4.

GEOGRAPHIC DISTRIBUTION. — Atlantic Ocean, tropical zone, Voronesh Anticline.

STRATIGRAPHIC RANGE. — Late early to early middle Eocene (Sanfilippo & Riedel 1970; Sanfilippo et al. 1985; Kozlova 1999); middle to late Eocene (this study).

REMARKS

Cyrtophormis (?) alta ( Moksyakova, 1961) holotype has no vertical rows of pores on its third segment, as it was observed for Theocotyle venezuelensis during our investigation.

Figures

FIG. 16. — Early and middle-late Eocene Radiolarians from different localities; A, F, Amphisphaera gonioxyphos (Clark & Campbell, 1942), o/p 294/11, interval 12.8 m; B, C, Periphaena quadrata (Clark & Campbell, 1942), well 510C, interval 36.0 m; D, Amphisphaera megaxyphos tetraxyphos (Clark & Campbell, 1942), o/p 294/4, interval 6.3 m; E, Carposphaera globosa Clark & Campbell, 1945, well 510C, interval 36.0 m; G, Dorylonchidium fructiforme Clark & Campbell, 1942, o/p 294/10, interval 12.2 m; H, I, Conoactinomma sp. aff. Conosphaera stilloformis Lipman, 1960, well 510C, interval 36.0 m; J, Calocyclas sp. aff. barbadensis Ehrenberg, 1875, well 730C, interval 43.7 m; K, L, Anthocyrtium sp., well 730C, interval 38.8 m; M, Theocotyle venezuelensis Riedel & Sanfilippo, 1970, o/p 294/11, interval 12.8 m; N-P, Tripodiscinus kaptarenkoae (Gorbunov, 1979), o/p 294/10, interval 12.2 m; Q, Calocyclas undella (Clark & Campbell, 1942), o/p 294/2, interval 4.3 m; R, Callimitra sp. aff. Tripilidium clavipes Clark & Campbell, 1945, o/p 294/6, interval 8.3 m; S, Tripodiscinus sp., well 730C, interval 38,8 m; T, Ceratocyrtis rhabdophora rhabdophora (Clark & Campbell, 1945), o/p 294/5, interval 7.3 m; U, Botryostrobus sp., well 730C, interval 38.8 m; V, Callimitra cf. atavia Goll, 1979, o/p 294/6, interval 8.3 m. Scale bars: 100 µm.