Fig. 3 in Composite Phymatoderma from Neogene deep-marine deposits in Japan: Implications for Phanerozoic benthic interactions between burrows and the trace-makers of Chondrites and Phycosiphon

Fig. 3. Composite Phymatoderma burrows from the Shiramazu Formation, Hiraiso section, Chiba Prefecture, central Japan. A, B. Phymatoderma reworked by Chondrites. Phymatoderma tunnels with dark gray-colored scoriaceous infill reworked by white-colored Chondrites (arrows). C, D. Phymatoderma reworked by Phycosiphon. Even within the pelletal infill of Phymatoderma, cores (white arrows) and surrounding mantles (black arrows) of Phycosiphon are sometimes clearly recognized (C). Field photos; A, B, parallel to the bedding plane; C, obliquely cut vertical cross-sectional view; D, vertical cross-sectional view. Scale bars 10 mm.