摘要：“From anatomy to ecology” contains 21 contributions devoted to aspects of the conch, ontogeny, anatomy and habitat of ammo noids. In “From macroevolution to paleogeography”, 20 chapters cover the topics macroevolution, paleobiogeography of ammonoids and ammonoids through time. Both titles were published one year after the 9th International Symposium “Cephalopods—Present and Past” (September 2014 in Zürich, Switzerland), and together with the symposium proceedings “Recent advances in Cambrian to modern cephalopod research, part I and II”, available in the same year, a generation change amongst ammonoid workers becomes manifested. 1.539 pages with 41 contributions from 55 authors make the two-volume relaunch of the 1996 “Ammonoid Paleobiology” (eds.: Neil H. Landman, Kazushige Tanabe, Richard A. Davis) with “only” 857 pages voluminous. Comparing the content of both editions it becomes clear how much “ammonoidology” advanced the last two decades. Rigorous morphometric and statistical analyses of the conch and the embryonal stages advanced our understanding of shell growth, morphological disparity, species concepts, and morphospace trajectories in time and across extinction horizons considerably as expressed by numerous contributions in the new 2015 edition. New ideas about the formation of the septum are provided. Buoyancy calculations are advanced by using techniques such as computer, grinding and synchrotron/neutron tomography. Stable oxygen isotope analyses of ammonoid shells enable the reconstruction of the ambient paleo water temperatures, providing clues to ammonite habitats, and parasites and pathologies of ammonoids received their own chapter. Endocochleate experiments in ammonoids are included, and quantitative biochronology supplements the established biostratigraphic procedures methodologically. Certainly, the synthesis of the latest discoveries of ammonoids around the K–Pg boundary and the extinction of the Ammonoidea remains an exciting story. Finally, organic geochemistry finds its way into ammonoid taphonomy, supplementing the 1996 chapter considerably. More recent observations can easily be discovered in the individual chapters.
