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. 2018 Dec 26;13(12):e0208158. doi: 10.1371/journal.pone.0208158

Fig 11. Virtual thin sections of Marginopora rossi A-form (RGM.1352063).

Fig 11

A: Radial vertical thin section in the outer part of the shell. Arrows indicate the position of D-F. B, C) Virtual vertical thin sections perpendicular to A. B) Chamber wall showing the regularly distributed stolons, which are the apertures when this wall is the outer whorl. C) Interseptal ridges showing irregular placing and infrequent connections. D) Virtual horizontal section through the lateral chamberlets. E) Virtual horizontal section through the annular passage (ap). F) Virtual horizontal section through the marginoporid structure showing rare annular connections (ac) and the alternating directions of the stolon passage (rs). Scale bars 100 μm.