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Swiss Journal of Geosciences
Fig. 7 | Swiss Journal of Geosciences

Fig. 7

From: An early Daonella from the Middle Anisian of Guangxi, southwestern China, and its phylogenetical significance

Fig. 7

Daonella fengshanensis sp. nov. All specimens composite moulds, from Unit E of the Lower Member of the Banna Formation (late Middle Anisian, early Middle Triassic), Jinya, Fengshan County, northwestern Guangxi, southwestern China. a NIGP 148224, valves of juvenile individuals, external and internal moulds. b NIGP 148224-5, external mould of right valve, showing the shell sculpture of the pre-adult growth stage C. c NIGP 148224-2, right valve, showing the shell sculpture of the pre-adult growth stage B. d NIGP 148224-7, right valve, showing the shell sculpture of the pre-adult growth stage A; note the short radial riblets on the ventral part of the central sector. e NIGP 148224-4, external mould of left valve, showing the shell sculpture of the pre-adult growth stage B. f NIGP 148224-3, right valve, showing the shell sculpture of the pre-adult growth stage A. g NIGP 148224-6, external mould of left valve, showing the shell sculpture of the pre-adult growth stage C. h NIGP 148224-1, (?) right valve. All scale bars 5 mm

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