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

TABLE 2. Locations of cephalic landmarks for analyzed specimens. LandmarkDescription1Intersection of anterior border with sagittal line2Intersection of border furrow with sagittal line3Intersection of anterior margin of frontal lobe with sagittal line4Intersection of anterior margin of occipital ring with sagittal line5Intersection of posterior margin of occipital ring with sagittal line6Intersection of axial glabellar furrow and posterior margin7Anterior border of palpebral lobe8Posterior border of palpebral lobe表2 分析标本的头盖骨标志点位点。 1. 前缘与矢状线的交点 2. 边缘沟与矢状线的交点 3. 额叶前缘与矢状线的交点 4. 枕环前缘与矢状线的交点 5. 枕环后缘与矢状线的交点 6. 轴鞍沟与后缘的交点 7. 眼叶前缘 8. 眼叶后缘