Fig 12. Micro-computed tomography of Marginopora charlottensis nov. spec with the shell removed, showing the interseptal space.

A) the first and seventh chamber of specimen RGM.1352120; B) the 12^th, 20^th, and 30^th chamber of specimen RGM.1352054; and C) the 40^th, 50^th, and 60^th chamber of RGM.132055. Note the very simple structure of the first chamber, the fairly regular and straight chamberlets, and the increasing disjunctions resulting in (flattened) interseptal pillars in the most marginal chambers. Scale bar approximately 100 μm.