praemurrayanum Kozlova, 1999

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 : 21

Amphicraspedium praemurrayanum Kozlova, 1999 ( Fig. 10L, M )

Amphicraspedium praemurrayanum Kozlova, 1999: 99 , pl. 22, figs 8, 14; pl. 42, fig. 9.

Amphicraspedium murrayanum – Sanfilippo & Riedel 1973: 524, pl. 10, figs 3-6, pl. 28, fig. 1. — Kozlova 1984: pl. X, fig. 10. — Nishimura 1987: 719, pl. 1, figs 14, 18. — Blueford & Amon 1993: 74, pl. 1, figs 7, 9; pl. 2, figs 2, 3, 5, 7; pl. 3, figs 1, 5, 6; pl. 6, figs 4, 9.

Amphicarydiscus ovoides Lipman, 1972: 51, fig. 15, pl. 10, figs 1, 2.

Amphicarydiscus fusoideus Lipman, 1972: 53, pl. 10, figs 3, 4.

Amphicarydiscus tshelkarensis Lipman, 1972: 54, pl. 10, figs 5, 6.

Amphibrachium mugodsharicum Gorbunov, 1979: 132, pl. 8, fig. 1a-b.

GEOGRAPHIC DISTRIBUTION.— Atlantic Ocean, a territory to the north of Aral Sea, Russian Platform, southern part. STRATIGRAPHIC RANGE. — Paleocene-early Eocene ( Riedel & Sanfilippo 1973; Nishimura 1987; Kozlova 1999). Middle Eocene ( Lipman 1972); (?)Late Paleocene-Early Eocene (this study).

REMARKS

The images of the species mentioned below are very much similar, to our point of view they are synonyms.

Figures

FIG. 10. — Early Eocene Radiolarian association, Petropavlovka Village, Well 730, interval 44.3 m; A, B, Periphaena perplexus (Clark & Campbell, 1942); C, F, J, Haliomma (?) faceta (Krasheninnikov, 1960); D, G, Heterosestrum formosum (Tochilina, 1970); E, Periphaena sp. aff. Heliodiscus inca (Clark & Campbell, 1942); H, K, Stylotrochus festivus Clark & Campbell, 1942; I, Heterosestrum (?) sp.; L, M, Amphicraspedium praemurrayanum Kozlova, 1999; N, Ommatogramma biconstrictus (Lipman, 1953). Scale bars: 100 µm.