Plate 1

Scanning electron microscope pictures of radiolarians from the Bermeja Complex, western Puerto Rico. Marker = 100 μm. Sample PR-SB01 (latest Tithonian–Late Valaginian). Fig. 1 Caneta (?) sp. Fig. 2 Archaeodictyomitra pseudomulticostata (Tan). Fig. 3 Archaeodictyomitra cf. tumandae Dumitrica. Figs. 4, 5 Archaeodictyomitra spp. Fig. 6 Cinguloturris cf. cylindra Kemkin & Rudenko. Fig. 7 Tethysetta boesii (Parona). Fig. 8 Svinitzium depressum (Baumgartner). Fig. 9 Pseudodictyomitra carpatica (Lozyniak). Fig. 10 Hiscocapsa cf. kaminogoensis (Aita). Fig. 11 Hiscocapsa cf. kitoi (Jud). Fig. 12 Cryptamphorella sp. Fig. 13 Emiluvia chica Foreman. Fig. 14 Emiluvia cf. ordinaria Ozvoldova. Fig. 15 Obesacapsula bullata Steiger. Fig. 16 Amuria sp. Fig. 17 Pantanellium squinaboli (Tan). Sample PR-SB02 (latest Tithonian–early Aptian). Fig. 18 Archaeodictyomitra cf. chalilovi (Aliev). Fig. 19 Archaeodictyomitra cf. tumandae Dumitrica. Fig. 20 Archaeodictyomitra mitra gr. Dumitrica. Fig. 21 Archaeodictyomitra sp. Fig. 22 Pseudodictyomitra cf. suyarii Dumitrica. Figs. 23–25 Cryptamphorella spp. Figs. 26, 27 Acanthocircus sp. Figs. 28–30 Pantanellium squinaboli (Tan). Fig. 31 Homoeoparonaella cf. irregularis (Squinabol)