FIGURE 2 in Geometric morphometric assessment of Guanshan trilobites (Yunnan Province, China) reveals a limited diversity of palaeolenid taxa

FIGURE 2. Reconstruction of the Palaeolenus douvilei cephalon showing chosen landmarks and semilandmarks. Blue outlines show semilandmarks placement. White arrows indicate semilandmarks trajectory. The black lines show the orientations which are following Whittington et al. (1997). Abbreviations: sag. – sagittal; tr. – transverse; exs. – exsagittal.