Plate 8

Scanning electron microscope pictures of radiolarians from the Bermeja Complex, western Puerto Rico. Marker = 100 μm. Sample PR-SB27 (late Aptian–middle Cenomanian). Figs. 1, 2 Archaeodictyomitra cf. immenhauseri Dumitrica. Fig. 3 Archaeodictyomitra cf. gracilis (Squinabol). Figs. 4, 5 Archaeodictyomitra montisserei (Squinabol). Figs. 6, 7 Archaeodictyomitra spp. Figs. 8, 9 Stichomitra (?) spp. Fig. 10 Thanarla aff. veneta (Squinabol). Fig. 11 Thanarla brouweri (Tan). Fig. 12 Thanarla sp. Figs. 13–15 Archaeospongoprunum sp. Figs. 16, 17 Stylosphaera spp. Fig. 18 Halesium (?) cf. palmatum Dumitrica. Figs. 19, 20 Pantanellium sp. Fig. 21 Quadrigastrum lapideum O’Dogherty. Fig. 22 Spumellaria gen. et sp. indet