PARED has been developed by Prof. Wolfgang Kiessling since 1995 with the aim to collect data on Phanerozoic reefs in a standardized format and to use those data for tracing patterns and processes in reef development. PARED currently holds data on more than 4300 Phanerozoic reef sites with geological, geographical, and paleontological information on every reef. While mostly developed for research, the database is useful for tracing reefal oil reservoirs through time and space. This upload is a simplified version with only the main reef builders, their age, coordinates, paleocoordinates, and the primary reference.