商品簡介
A synopsis of current knowledge of the subject for workers in the field as well as graduate students in paleontology, and, perhaps, amateur fossil collectors smitten with the beauty of ammonoids. The goal is to summarize what is known and not known about these extinct animals so that their potential for contributing to evolutionary studies can be more thoroughly tapped. Twenty papers are presented in sections on the phylogenetic perspective; the structure of hard and soft tissues; buoyancy, swimming, and biomechanics; growth; taphonomy; ecology; and biostratigraphy and biogeography. Annotation c. by Book News, Inc., Portland, Or.