Figures & data
Figure 1 Map of New Zealand showing the locations of specimens of Clavagella maxwelli n. sp. and of C. oamarutica Maxwell mentioned in the text.
Figure 2 Clavagella maxwelli n. sp., Mount Harris Formation (Altonian, early Miocene), Awamoa Beach, North Otago. (A–C) Holotype, OU44540; A, left side showing location of fused left valve; B, right side showing sutures; C, left valve. D, Paratype, OU44541, left valve.
Figure 3 Clavagella maxwelli n. sp., Mount Harris Formation (Altonian, early Miocene), Awamoa Beach, North Otago. (A–D) Paratype, OU44541; A, left side showing fused left valve; B, right side; C, anterior view showing attachment scar of bryozoan fragment; D, enlargement of branching tube on ventral side of crypt. (E–I) Paratype, OU44542; E, anterior view; F, dorsal view of hinge of free right valve; G, external surface of free right valve; H, damaged dorsal side with free right valve as found; I, ventral view.
Figure 4 A, Clavagella maxwelli n. sp., holotype, drawing of right side of adventitious tube showing sutures as thick black lines (infilling sediment is hatched). B, Interpretation of how sutures represent eventual unification of components of adventitious tube secreted by four regions (1–4) of the underlying mantle. Orientation and size of left shell valve, incorporated into structure of tube, shown by hatched area.
Figure 5 Stirpulina cf. pallinupensis Morton, OU40752, Wharekuri Greensand (Whaingaroan, Oligocene), Wharekuri Creek, Waitaki Valley, North Otago; drawings of latex casts of internal moulds. A, Specimen 1, showing basal portions of four unbranched, rather flat tubules, and posterior two-thirds of interior surface of free right valve. (B, C) Specimen 2, showing interior surfaces of B, right valve and C, left valve.
