Fig. 1
From: A plea not to ignore ichnotaxonomy: recognizing and recording Oichnus Bromley
Scanning electron micrographs of examples of site specificity of O. paraboloides Bromley in the gastropods Acteocina lepta Woodring 1928 (a–c), and Natica castrenoides Woodring 1928 (d–g), from the Bowden shell beds, Bowden Formation, south-east Jamaica (after Pickerill and Donovan 1998, pl. 3). (a–c) Oichnus paraboloides in Acteocina lepta. (a) ×25; (b) ×22; (c) ×19. Note shell fracturing and resultant breakage immediately to the left of O. paraboloides in (a). (d–g) Oichnus paraboloides in Natica castrenoides. (d) ×9; (e) ×7; (f) ×9; (g) ×8. Note that other examples of O. paraboloides in A. lepta (n = 9) (see also Woodring 1928, pl. 2, Fig. 5) and N. castrenoides (n = 6) are located at almost identical sites. All specimens coated with 60% gold–palladium. Specimens deposited in the Museum of the Department of Earth Sciences, University of New Brunswick, Fredericton, Canada