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FIGURES 57–59 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 57–59. Afrocymbella nyassae sp. nov., SEM internal valve views. 57. View of the whole valve showing raphe structure and areolae without velum. 58. Detail of mid-valve of a broken valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 59. Close view of valve apices showing APF with knobby jointed ridge of silica (white arrow) and distal raphe fissures slightly raised into small helictoglossae. Scale bars = 5 μm (Figs 57–58), 2 μm (Fig. 59).

FIGURES 60–80 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 60–80. Afrocymbella delphinea sp. nov., LM valve views. 60–63, 65–80. Valves from the type material. Fig. 74. Holotype specimen. Scale bar = 10 μm.

FIGURES 28–31 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 28–31. Afrocymbella symmetrica sp. nov., SEM internal valve views. 28. View of the whole valve. 29. Detail of valve ends showing APF with knobby jointed ridge of silica. 30. Detail of mid-valve showing internal openings of areolae without velum, proximal raphe ends covered by flap-like silica development, and antler-like intermissio stigmoid. 31. Close view of the bisected distal raphe terminal fissures, terminating into small lobed helictoglossa (black arrow). Scale bars = 10 μm (Fig. 28), 2 μm (Figs 29–31).

FIGURES 54–56 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 54–56. Afrocymbella nyassae sp. nov., SEM external valve views. 54. Half-valve showing uniseriate striae and single stigmoid positioned distally from the round, slightly asymmetric central area. 55. View of the whole valve showing raphe structure and striae continuing onto valve mantle. 56. Close view of distal raphe terminal fissure and APF of round poroids. Scale bars = 5 μm (Fig. 54), 2 μm (Fig. 55), 1 μm (Fig. 56).

FIGURES 32–53 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 32–53. Afrocymbella nyassae sp. nov., LM valve views. All valves displayed from the type material (core sample MAL05-1C- 26E2, 17–18 cm, ~135.5 ka). Fig. 39. Holotype specimen. Scale bar = 10 μm.

FIGURES 112–115 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115).

FIGURE 1 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURE 1. Map of the lakes Tanganyika and Malawi, showing the sampling locations of modern (red circles) and fossil (cores MAL05- 1C and NPO4-KH1-1K; white circles) specimens used in this study.

FIGURES 144–147 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 144–147. Afrocymbella gracilis, LM valve views. Observed in samples from Chituta Bay and Kombe, Lake Tanganyika. Scale bar = 10 μm.

FIGURES 109–111 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views. 109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111).

FIGURES 2–23 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 2–23. Afrocymbella symmetrica sp. nov., LM valve views. 2–19, 23. Valves from the type material, core NPO4-KH1-1K, Drive 4, 43–44 cm sample (~50 ka). Fig 9. Holotype specimen. 20–22. Valves from modern sample. Scale bar = 10 μm.

FIGURES 24–27 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species

FIGURES 24–27. Afrocymbella symmetrica sp. nov., SEM external valve views. 24, 26. View of the whole valve showing raphe structure, striae on valve mantle, APF on footpole, and dorsally positioned stigmoid. 25. Detail of valve apex showing the striae structure and APF. 27. Detail of mid-valve showing dorsally deflected proximal raphe ends, small diamond-shaped central area, and slightly elongated stigmoid. Scale bars = 5 μm (Figs 24, 26), 2 μm (Fig. 27), 1 μm (Fig. 25).

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FIGURES 1–2 in TwonewfossilspeciesofthegenusAtomariaStephens (Coleoptera:Cryptophagidae) from Eocene European amber with a key to species described from fossil resins

FIGURES 1–2. Atomaria (Anchicera) alekseevi sp. nov., holotype, No 6831 [MAIG]: 1—habitus, dorsal view; 2—habitus, ventral view. Scale bar = 0.25 mm.

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FIGURES 3–4 in TwonewfossilspeciesofthegenusAtomariaStephens (Coleoptera:Cryptophagidae) from Eocene European amber with a key to species described from fossil resins

FIGURES 3–4. Atomaria (Anchicera) perkovskyi sp. nov., No 6832 [MAIG]: 3—habitus, dorsal view; 4—habitus, ventrolateral view. Scale bar = 0.25 mm.

Figure 38 in Diversity of schizomids (Arachnida: Schizomida) revealed by new fossil genera and species from mid-Cretaceous Burmese amber with implications for a Gondwanan origin of the Burma Terrane

Figure 38. Undescribed schizomids in Burmese amber (all from the Müller collection). A, BUB3556. B, BUB10. C, BUB007. D, BUB09. E, BUB3545. F, BUB3547. G, BUB3544. H, BUB3557. I, BUB1531. J, BUB559. K, BUB3554. L, BUB3551. Scale bars: 1 mm.

Figure 37 in Diversity of schizomids (Arachnida: Schizomida) revealed by new fossil genera and species from mid-Cretaceous Burmese amber with implications for a Gondwanan origin of the Burma Terrane

Figure 37. Undescribed schizomids in Burmese amber. A, Gröhn collection no. 11216. B, Gröhn collection no. 11215. C, Müller collection no. BUB08. D, Müller collection no. BUB561. E, Müller collection no. BUB1530. F, Müller collection no. BUB3546. G, Müller collection no. BUB08. Scale bars: 1 mm.

Figure 35 in Diversity of schizomids (Arachnida: Schizomida) revealed by new fossil genera and species from mid-Cretaceous Burmese amber with implications for a Gondwanan origin of the Burma Terrane

Figure 35. Distribution of species with a 1 + 2 setation on the anterior process in present times (A) and in same locations at 160 Mya (B), modified after Seton et al. (2021). Abbreviations: AF, Africa; ANT, Antarctica; AS, Asia; AU, Australia; BT, Burma Terrane; EUR, Europe; G, Greenland; I, India; NA, North America; SA, South America.

Figure 31. Specimen GPIH04892 in Diversity of schizomids (Arachnida: Schizomida) revealed by new fossil genera and species from mid-Cretaceous Burmese amber with implications for a Gondwanan origin of the Burma Terrane

Figure 31. Specimen GPIH04892, †Muellerizomus amandae sp. nov., female paratype, details. A, female flagellum in dorsal view, photograph. B, same, interpretative drawing. See Material and methods for explanation of abbreviations. Scale bar: 0.50 mm.

Figure 39 in Diversity of schizomids (Arachnida: Schizomida) revealed by new fossil genera and species from mid-Cretaceous Burmese amber with implications for a Gondwanan origin of the Burma Terrane

Figure 39. Undescribed schizomids in Burmese amber (all from the Müller collection except for D, Gröhn collection). A, BUB3550. B, BUB11. C, BUB3543. D, Gröhn collection no. 11207. E, BUB3555. F, BUB562. G, BUB560. H, BUB3558. I, BUB3552. J, BUB3564. K, BUB3548. L, BUB3549. Scale bars: 1 mm.

Figure 34. Specimen GPIH04894 in Diversity of schizomids (Arachnida: Schizomida) revealed by new fossil genera and species from mid-Cretaceous Burmese amber with implications for a Gondwanan origin of the Burma Terrane

Figure 34. Specimen GPIH04894, †Muellerizomus palicaudatus sp. nov., holotype, details. A, flagellum in dorsal view, photograph. B, same, interpretative drawing. C, flagellum in ventral view, photograph. D, same, interpretative drawing. See Material and methods for explanation of abbreviations. Scale bars: 0.25 mm.

Figure 29. Specimen GPIH04892 in Diversity of schizomids (Arachnida: Schizomida) revealed by new fossil genera and species from mid-Cretaceous Burmese amber with implications for a Gondwanan origin of the Burma Terrane

Figure 29. Specimen GPIH04892, †Muellerizomus amandae sp. nov., female paratype. A, specimen in dorsal view, photograph. B, same, interpretative drawing. C, specimen in ventral view, photograph. D, same, interpretative drawing. See Material and methods for explanation of abbreviations. Scale bars: 1 mm.