English: (A) Technical reconstruction of Wufengella bengtsoni in dorsal view. Artwork by Elissa Sorojsrisom. (B) Artistic reconstruction of W. bengtsoni in anterior dorsolateral view. Artwork by Bob Nicholls. (C) Schematic diagrams of sclerite morphologies from across the diversity of tommotiids, exemplified by selected species. (D) Phylogeny of lophotrochozoans incorporating Wufengella and other tommotiids based on a morphological character matrix analyzed under the mki + gamma model, with topological constraints (STAR Methods); scale bar for branch lengths in expected number of substitutions per site; thumbnail images show the locations of sclerites (blue), chaetae and their homologs (orange), and the trajectory of the gut (red, inferred/surmised in some taxa).