Treatise on Invertebrate Paleontology

The Treatise on Invertebrate Paleontology, published from 1953–1966 by the Geological Society of America and the University of Kansas Press, 1969–2007 by the Geological Society of America and the University of Kansas, then 2009–present by the University of Kansas Paleontological Institute, is a definitive multi-authored work of currently 55 volumes, written by more than 300 paleontologists, and covering every phylum, class, order, family, and genus of fossil and extant (still living) invertebrate animals. The prehistoric invertebrates are described as to their taxonomy, morphology, paleoecology, stratigraphic and paleogeographic range.

Source: Wikipedia — Treatise on Invertebrate Paleontology (CC BY-SA 4.0)