Fig. 8

Hoplitaspis hiawathai, specimens preserving morphological details of the buckler and postabdomen. a UWGM 2284, preserving the coxae and metastoma anterior to the ventral buckler plate, which clearly shows the anterior median notch. Eight segments of the postabdomen are also preserved. b UWGM 2041, prosomal shield and buckler. c UWGM 1946A (top) and UWGM 1946B (bottom), preserving postabdominal segments. d UWGM 2044A, specimen showing prosomal appendage insertion with prosomal ventral plate in situ, anterior to the buckler ventral plate displaying anterior median notch. e UWGM 1946C, small, almost complete specimen. f UWGM 1946D partially disarticulated specimen exhibiting extreme curvature. g UWGM 1946E, postabdomen and telson. h UWGM 2044B, oblique view showing buckler ventral plate separating from buckler tergites. i UWGM 1946, block with five specimens. Scale bars = 10 mm