Extended Data Figure 2. Trace fossils in Core 40 Section 1 of IODP Hole M0077A.
Discrete burrows in the upper transitional unit and the lower limestone are circled and labelled by the genus. Above the base of the limestone, trace fossils are abundant; representative examples are highlighted in the lower 10 cm of this interval. Ch: Chondrites; Pl: Planolites; Pa: Paleophycus.