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Plate 1 | Swiss Journal of Palaeontology

Plate 1

From: The planktonic foraminifera of the Jurassic. Part I: material and taxonomy

Plate 1

(=Plate 2.4 in Simmons et al. 1997). Nos. 1–6, Globuligerina dagestanica (Morozova) 1961 (originally published as Conoglobigerina avarica Morozova 1961), Early Bathonian, central Dagestan. Specimens deposited in the Geological Institute of the Academy of Sciences of Russia, Moscow. No. 1 (no. 3513/3) height of spire 170 µm, ×235. Nos. 2, 3, height of spire 150 µm, ×265. No. 4 (no. 3513/24) enlargement of the wall surface, ×1100. No. 5, umbilical view, ×285. No. 6 (no. 3513/19) specimen diameter 180 µm, spiral view, ×220. Nos. 7–16, Globuligerina balakhmatovae (Morozova) 1961 (published originally as Conoglobigerina balakhmatovae), Early Bathonian, central Dagestan, holotype and paratypes in the Geological Institute of the Academy of Sciences, Russia, Moscow. No. 7, paratype (no. 3514) enlargement of the surface showing microperforations and pustules, ×1500. Nos. 8, 12, paratype (no. 3513/19) specimen diameter 120 µm, ×335. Nos. 9–11, holotype (no. 3513/1), specimen diameter 180 µm, ×285. Nos. 13–15, paratype with slightly ovate chamber shape, specimen diameter 140 µm, ×265. No. 16, spiral view of paratype showing two whorls with rapidly enlarging chambers, ×220

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