The Proceedings of the Eighth International Conference on Creationism (2018)

Coulson ◀ Stromatolites ▶ 2018 ICC 380 Figure 6. Spicule networks from microbialites in bed 11. All images are in cross-section. Abbreviations: M = micrite; S = sponge; SC = sponge cavity. A. Sponge is attached to the underside of a trilobite carapace (under the “Sheperd’s Crook” which is diagnostic for trilobite carapaces). B. Spicule networks circumscribe possible sponge cavities (square enlarged in E). C and D. Two other sponge spicule networks. E. Desma-like spicules showing putative zygosis (long arrows) and curved, arcuate rays (short arrows). F. Partial network showing bulbous zygomes (outlined) and curved rays (arrows). G. Desma-like spicule showing possible gnarled zygome (circled) and curved ray (arrow). H. Spicules showing straight rays. Figure used with permission from SEPM, Coulson and Brand (2016).