The new version (2009) of “Treatise on Invertebrate Paleontology” has been published

Treatise on Invertebrate Paleontology (Part L, Mollusca 4, Revised, Volume 2: Carboniferous and Permian Ammonoidea (Goniatitida and Prolecanitida) has been published recently.

form more information:http://paleo.ku.edu/L2.html