ผู้เขียน: Roger L. Kaesler

Bruce S. Lieberman is a Professor in the Department of Geology and a Senior Curator of Invertebrate Paleontology in the Natural History Museum/Biodiversity Research Center (NHM/BRC) at the University of Kansas (KU), U.S.A. His research focuses on the study of evolution in the fossil record, including the origin of animals, macroevolutionary theory, and biogeography. Roger L. Kaesler passed away in 2007. He was Director of the Paleontological Institute as well as a Professor in the Department of Geology and a Senior Curator of Invertebrate Paleontology in the NHM/BRC at KU. His research focused on paleoecology and fossil arthropods.