Giraffospyris didiceros ( Ehrenberg, 1875 )

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 : 33

Giraffospyris didiceros ( Ehrenberg, 1875) ( Fig. 12D, N )

Ceratospyris didiceros Ehrenberg, 1875 : taf. XXI, fig. 6. Aegospyris transitionalis – Kozlova & Gorbovets 1966: 94, tabl. XV, fig. 5a, b.

Giraffospyris didiceros ex. gr. – Riedel & Sanfilippo 1970: 550, pl. 5, figs 3-5.

Dorcadospyris confluens Nishimura, 1987: 725 , pl. 3, figs 18, 19.

Triospyrium sp. ex. gr. didiceros – Kozlova 1999: 175, pl. 31, figs 21, 25.

GEOGRAPHIC DISTRIBUTION.— Western-North Atlantic, California, Western Siberia, Voronesh Anticline.

STRATIGRAPHIC RANGE. — Middle to late Eocene ( Ehrenberg 1875; Clark & Campbell 1945; Kozlova & Gorbovets 1966; Riedel & Sanfilippo 1970; Blueford & White 1984; Kozlova 1999; this study).

Figures

FIG. 12. — Middle Eocene Radiolarian association, Pirogovo Village, Well 510C, interval 44.0 m (except 8: 730C, 44.3 m); A, Ceratocyrtis charlestonensis (Clark & Campbell, 1945); B, E, F, Ceratocyrtis sp. aff. stigi (Bjørklünd, 1976); C, Lithomelissa spongiosa Bütschli, 1882; D, N, Giraffospyris didiceros (Ehrenberg, 1875); G, Patagospyris morkleyensis (Clark & Campbell, 1942); H, K, Giraffospyris sp. aff. didiceros (Ehrenberg, 1875); I, J, Petalospyris tumidula Kozlova, 1966; L, M, Peripyramis magnifica (Clark & Campbell, 1942) sensu Kozlova 1999; O, Heterosestrum formosum (Tochilina, 1970), saggittal view. Scale bars: 50 µm.