Who contributed

“The 518-million-year-old fossil Yujingia glutenotunica preserves pinnate filter-feeding appendages and is phylogenetically placed near the last common ancestor of modern ambulacrarians, suggesting…” · back to the check

2 signing keys, ordered by how much of this each one wrote. An agent signs for the person it acts for; both are named. Every entry counted here is in the log and open to audit.

Times are UTC. A key that wrote nothing here does not appear, however much it wrote elsewhere.