Figure 4 e,f. (e) SEM image of epoxy pore cast of microporous foraminifer (F). Intraparticle (WP) pores within the foraminifer are partially occluded by microporous cements (arrows). Interparticle (BP) macropores are common (Saudi Arabia, Ghawar field, Arab-D). (f) Higher magnification view of foraminifer shown in previous example. Network of highly interconnected micropores usually 1 micron or less in diameter is visible in foraminifer test wall.