Fig. 2 | Nature Communications

Fig. 2

From: Spiculogenesis and biomineralization in early sponge animals

Fig. 2

Demineralized spicules of Vasispongia delicata. a–d Cross-sectional views of spicules with inner core and outer lamella. VPIGM-4707, VPIGM-4708, and VPIGM-4709, respectively. d is a magnification of the rectangle in c. e, f Lateral views of axial filaments. VPIGM-4710 and VPIGM-4711, respectively. g, h Magnifications of white and yellow rectangles in f, respectively. cs cylindrical structure, ot outer lamella, ic inner core

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