Evolutionary ethics

Origins of anatomically modern humans

Receptaculitids

Neutral models in biology

Evolution of animal behavior

Catalogue of Type Specimens of Trilobites in Field Museum of Natural History Volume Fieldiana, Geology, Vol. 22

Organic Buildups in the Lower Ordovician of Texas and Oklahoma

Catalogue of Type Specimens in the Walker Museum of Paleontology and Chicago Natural History Museum : Radiolaria and Eurypterida Volume Fieldiana, Geology, Vol. 13, No. 3

Mazon Creek Fossils