†Hillichnus Bromley, Uchman, Gregory & Martin 2003
Bromley, Uchman, Gregory & Martin 2003. Hillichnus lobosensis igen. et isp. nov., a complex trace fossil produced by tellinacean bivalves, Paleocene, Monterey, California, USA. Palaeogeography Palaeoclimatology Palaeoecology, 192(1-4), 15 March 2003: 157-186