Figure 3
From: A new macrofaunal limit in the deep biosphere revealed by extreme burrow depths in ancient sediments
Typical examples of bioturbation found on clastic injectite margins. (A) Unit E (Site 1): dewatering structures (Aristophycus) on margin of a subvertical injectite, overprinted by Thalassinoides bioturbation. (B) Unit E (Site 1): Planolites tube protruding in cross-section of sill, planform of tube is outlined on the top margin of the sill. (C) view of (B) from alternate orientation. (D) Unit E (Site 1): Cross-cutting Planolites on base of sill. (E) Unit D (Site 2): Dyke margin with several examples of bioturbation, largest Planolites are indicated. (F) Unit C (Site 3): Dyke margin with several, smaller Planolites.
