Figures

Figure 15.19   Ceratocystis from North Africa. (a) Basic anatomic features. (bd) Three current interpretations of the softtissue anatomy of the stylophoran appendage in proximal longitudinal (left) and distal transverse (right) section: (b) primitive echinoderm model, (c) calcichordate model and (d) crinozoan model. (Based on Clausen & Smith 2005.)

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