Figure 4. Reconstructed suture lines of Agoniatites (below) and Scaphites (above). The reconstruction of Scaphites uses 1024 amplitudes; that of Agoniatites uses only 64 amplitudes. Black curve in background is the suture line as digitized from published image. The white lines in the foreground are the reconstructions, calculated from Fourier amplitudes. Figures modified from Wiedmann (1969).