The gastropods of the St. Louis, Missouri, Pennsylvanian outlier: the Pseudozygopleurinae - 1930
Middle Ordovician echinoderms from northern Illinois and southern Wisconsin - 1975
Agnostid biostratigraphy across the Middle-Upper Cambrian boundary in Hunan, China - 2000
Gastropods from the Permian of Guangxi and Yunnan Provinces, South China - 2002
Cambrian Trilobites from the Parahio and Zanskar Valleys, Indian Himalaya - 2009