Oldest known 3D burrow systems uncovered in Hubei's Shibantan biota

Oldest known 3D burrow systems uncovered in Hubei's Shibantan biota

A research team from the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences (NIGPAS) has made progress in studying the Shibantan biota in Yichang, Hubei Province, uncovering the oldest known complex three-dimensional burrow systems to date. Preserved in approximately 550-million-year-old strata, these trace fossils show that complex animal behaviors were modifying the seafloor environment nearly 10 million years ear…