Description of Research Summary Statement of Research Interests Professor Bottjer is a paleobiologist and paleoecologist who has worked broadly on organism-sediment interactions and the ecological history of life. His current research focuses on two broad paleobiological questions. The first includes a multidisciplinary approach to understanding the paleobiology and paleoecology of early metazoan life, with field work conducted in eastern California and China. The second emphasizes obtaining a detailed understanding of the paleoecology of the recovery from the end-Permian mass and end-Triassic extinctions, with extensive work on Triassic strata throughout the western U.S., Europe, Japan and China. This Triassic research project has led to involvement in the Paleobiology Database, which has undertaken the development of large databases with web-based access to solve major outstanding paleobiological and evolutionary problems.