. Bulletin of the British Museum (Natural History), Geology. 4 ^^T^ |('< 4 , : \ y*. _ r f .'. Fig. 22 Bohemilla (Fenniops) sabulon subgen. et sp. nov. Upper Arenig, Fennian, Bergamia rushtoni Biozone, loc. 23. a, incomplete cranidium and three thoracic segments, x 6, It. 15940; b, c, holotype part and counterpart, showing thoracic pleurae, x 6, It. 15939; d, cranidium, showing border well, , x 6; e, f, g, incomplete exoskeleton, NMW ; e, x 4; f, latex cast from pygidium under high contrast illumination, showing displaced seventh thoracic segment, x 12; g, detail of glabell
. Bulletin of the British Museum (Natural History), Geology. 4 ^^T^ |('< 4 , : \ y*. _ r f .'. Fig. 22 Bohemilla (Fenniops) sabulon subgen. et sp. nov. Upper Arenig, Fennian, Bergamia rushtoni Biozone, loc. 23. a, incomplete cranidium and three thoracic segments, x 6, It. 15940; b, c, holotype part and counterpart, showing thoracic pleurae, x 6, It. 15939; d, cranidium, showing border well, , x 6; e, f, g, incomplete exoskeleton, NMW ; e, x 4; f, latex cast from pygidium under high contrast illumination, showing displaced seventh thoracic segment, x 12; g, detail of glabella, x 8. furrow. The specimen shown in Fig. 22d has a slight median dimple. Anterior cranidial border narrow, rim-like, distinctly wider at mid-line. It just curves around the anterolateral corner of the glabella, narrowing into a 'gutter' running to the palpebral lobe. The occipital ring carries a sagittal ridge which extends into a tiny tubercle at the posterior margin; the specimen in Fig. 22d shows a pair of posterior tubercles developed in a position comparable with the occipital spines of B. (Bohemilla) tridens Rushton & Hughes 1981. Palpebral lobe gently curved, sited adjacent to the glabella and symmetrically disposed about the 3P glabellar furrow; a faint, narrow rim is defined, outlining a crescentic interocular area. The palpebral lobe has a length (exsag.) slightly less than that of the occipital ring. Flat, triangular postocular cheek with maximum transverse width between 0-3 and 0-45 of that of adjacent glabella. Posterior margin inclined forwards at an angle between 40° and 50° to sagittal line. Narrow, bevelled posterior border, defined by shallow furrow. Suture runs inwards and forwards from lateral tip of fixed cheek to palpebral lobe, in front of which it follows the 'gutter' to curve round the front margin of the cranidium. Cranidial surface probably minutely granulose. We have not found the free. Please note that these images are extracted from scanned
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Keywords: ., bookauthorbritishmuseumnaturalhistory, bookcentury1900, bookcoll
