This book is the second part of a two-volume work, and is a testament to the abiding interest and human fascination with ammonites. We offer a new model to explain the morphogenesis of septa and the shell, we explore their habitats by the content of stable isotopes in their shells, we discuss the origin and later evolution of this important clade, and we deliver hypotheses on its demise. The Ammonoidea produced a great number of species that can be used in biostratigraphy and possibly, this is the macrofossil group, which has been used the most for that purpose. Nevertheless, many aspects of their anatomy, mode of life, development or paleobiogeographic distribution are still poorly known. Themes treated are biostratigraphy, paleoecology, paleoenvironment, paleobiogeography, evolution, phylogeny, and ontogeny. Advances such as an explosion of new information about ammonites, new technologies such as isotopic analysis, tomography and virtual paleontology in general, as well as continuous discovery of new fossil finds have given us the opportunity to present a comprehensive and timely "state of the art" compilation. Moreover, it also points the way for future studies to further enhance our understanding of this endlessly fascinating group of organisms.
PART I - Macroevolution
1 Ancestry, origin and early evolution of ammonoids Christian Klug, Bjorn Kroger, Jakob Vinther, Dirk Fuchs and Kenneth De Baets
2 Evolutionary trends of Triassic ammonoids Claude Monnet, Arnaud Brayard and Morgane Brosse
3 Evolutionary trends within Jurassic ammonoids Pascal Neige and Isabelle Rouget
4 Buckman's rules of covariation Claude Monnet, Kenneth De Baets and Margaret M. Yacobucci
5 Evolutionary patterns of ammonoids: phenotypic trends, convergence, and parallel evolution Claude Monnet, Christian Klug and Kenneth De Baets
PART II - Paleobiogeography of ammonoids
6 Biogeography of Paleozoic ammonoids Dieter Korn and Kenneth De Baets
7 Biogeography of Triassic ammonoids Arnaud Brayard, Gilles Escarguel, Claude Monnet, James F. Jenks and Hugo Bucher
8 Macroevolution and paleobiogeography of Jurassic-Cretaceous ammonoids Margaret M. Yacobucci
9 Paleobiogeography of Early Cretaceous ammonites Jens Lehmann, Christina Ifrim, Luc Bulot and Camille Frau
10 Paleobiogeography of Late Cretaceous Ammonoidea Christina Ifrim, Jens Lehmann and Peter D. Ward
PART III - Ammonoids through time
11 Ammonoids and quantitative biochronology - a unitary association perspective Claude Monnet, Arnaud Brayard and Hugo Bucher
12 Paleozoic ammonoid biostratigraphy Dieter Korn and Christian Klug
13 Biostratigraphy of Triassic ammonoids James F. Jenks, Claude Monnet, Marco Balini, Arnaud Brayard and Maximiliano Meier
14 Ammonoid biostratigraphy in the Jurassic Gunter Schweigert
15 Ammonite biostratigraphy of the Cretaceous Jens Lehmann
16 Taxonomic diversity and morphological disparity of Paleozoic ammonoids Dieter Korn, Christian Klug and Sonny A. Walton
17 Permian-Triassic extinctions and rediversifications Arnaud Brayard and Hugo Bucher
18 Ammonoids at the Triassic-Jurassic transition: pulling back from the edge of extinction Louise M. Longridge and Paul L. Smith
19 Ammonites on the brink of extinction: diversity, abundance, and ecology of the Order Ammonoidea at the Cretaceous/Paleogene (K/Pg) boundary Neil H. Landman, Stijn Goolaerts, John W.M. Jagt, Elena A. Jagt-Yazykova and Marcin Machalski
20 Ammonoid Taphonomy Ryoji Wani and Neal S. Gupta