Left paramedian phytosaur osteoderm WMNM P98442 from the late middle Rhaetian Bone Bed 2 of the Contorta Beds of the Exter Formation of Bonenburg, North Rhine-Westphalia, Germany. A, B. Photograph and drawing of external view showing the typical phytosaur radiating sculpture and the central longitudinal ridge of a paramedian osteoderm. Note that the anterior part (left) is less sculptured and that the ridge does not extend to the anterior edge; C, D. Photograph and drawing of anterior view. Note the thinness of the edge which was underlapping the preceding osteoderm; E, F. Photograph and drawing of internal view, showing the flat and smooth surface. Abbreviations: a, anterior; m, medial.