Fig. 13 in Taming an ichnotaxonomical Pandora's box: revision of dendritic and rosetted microborings (ichnofamily: Dendrinidae)

Fig. 13. Calcideletrix anomala (Mägdefrau, 1937) comb. nov. A. Original glass negative of the lost holotype from an Upper Cretaceous belemnite from Misburg, Germany. B–C. Overview and closeup of the neotype from the same type locality and horizon; the centre of the colony is partly obscured by a deeper tier of Dendrina ispp. D. A large specimen in a belemnite from the upper Campanian of Kronsmoor, Germany. E–F. SEM planar and oblique views of an epoxy cast of the same specimen.