Superbly detailed line drawings are a valuable feature of the chart. The most important fossil invertebrate phyla are illustrated and the distinguishing features of 700 major genera are clearly shown for ease of identification. Phyla represented in the chart include: Porifera (sponges), Cnidaria (jellyfishes, corals), Bryozoa, Brachiopoda, Mollusca (snails, clams, ammonites), Arthropoda (insects, crustaceans) and Echinodermata (starfishes, urchins).
The stratigraphical distributions of the phyla become immediately clear from the organisation of the chart. The brightly coloured age-ranges of the phyla and their subdivisions are printed over the stratigraphic periods, which form horizontal bands spanning the chart from left to right. The taxonomy follows the most current classification.
In addition to students of palaeontology and academics requiring a handy visual overview of the subject, this chart will be much in demand by natural history museums, oil companies, evolutionary biologists and amateur collectors....Continua