Measurements in nm of conoid components, pre-conoidal rings and apical polar ring from Fig 1.

For 2 of the 14 tomograms (number 3 and number 12) the ends of a few of the conoid fibres extended past the imaging volume, for these conoids, only the fibres where the start and end were visible were included in the analysis of fibre length, spacing, angle and curvature.
(XLSX)