Title Page
ABSTRACT
Contents
I. INTRODUCTION 10
I-1. Institutional abbreviations 13
II. MATERIALS AND METHODS 13
III. GEOLOGICAL SETTING 15
IV. SYSTEMATIC PALEONTOLOGY 17
V. DESCRIPTION 26
V-1. Carapace 27
V-2. Plastron 32
V-3. Limb bone 34
VI. CLADISTIC ANALYSIS 35
VII. DISCUSSION 37
VII-1. Comparisons to related taxa 37
VII-2. Origin and diversification of adocids 41
VIII. CONCLUSIONS 45
REFERENCES 46
APPENDICES 54
APPENDIX 1. Character statements 54
APPENDIX 2. Data matrix 56
국문초록 59
TABLE 1. Various body and egg fossils reported from the Hasandong Formation. 16
TABLE 2. Measurements of materials in NHCG 10102 and SNUVP 200209 (in mm). The tilde symbol (~) indicates that the measurement is given in terms of the... 26
FIGURE 1. Map of the fossil locality 12
FIGURE 2. Photograph of carapace of Proadocus hadongensis gen. et sp. nov. (NHCG 10102, holotype) in dorsal view. 19
FIGURE 3. Line drawing of carapace of Proadocus hadongensis gen. et sp. nov. (NHCG 10102, holotype) in dorsal view. Sutures are drawn in solid lines, whereas... 20
FIGURE 4. Photograph of plastron of Proadocus hadongensis gen. et sp. nov. (NHCG 10102, holotype) in ventral view. 21
FIGURE 5. Line drawing of plastron of Proadocus hadongensis gen. et sp. nov. (NHCG 10102, holotype) in ventral view. Sutures are drawn in solid lines, whereas... 22
FIGURE 6. Photographs and line drawings of disarticulated shell materials in NHCG 10102. (A) 1st costal and (B) 2nd costal in dorsal views. The dark grey area indicates a matrix. Light grey indicates damaged portions.[이미지참조] 23
FIGURE 7. Photographs and line drawings of disarticulated humerus material of Proadocus hadongensis gen. et sp. nov. (NHCG 10102, holotype). (A) Lateral, (B)... 24
FIGURE 8. Photographs of a right 3rd peripheral of Proadocus hadongensis gen. et sp. nov. (SNUVP 200209). (A) Dorsal and (B) posterior views.[이미지참조] 25
FIGURE 9. Shell sculpturing in (A) carapace and (B) plastron of Proadocus hadongensis gen. et sp. nov. (NHCG 10102). 30
FIGURE 10. 2nd costal of Proadocus hadongensis gen. et sp. nov. (NHCG 10102, holotype) in ventral view. Abbreviations are as follows: f.r, free rib; r.a, ribhead...[이미지참조] 31
FIGURE 11. Majority 50% consensus of the 11 most parsimonious trees. 36
FIGURE 12. Comparison of marginal scales patterns between Proadocus and two basal pantrionychians. Marginal scales are drawn in dotted line with red color. Sinaspideretes after Tong et al. (2014); Basilochelys after Tong et al. (2009). 39
FIGURE 13. Comparison of marginal scales patterns between Proadocus and other adocid genera. Marginal scales are drawn in dotted line with red color. Ferganemys and Shachemys is based on Ferganemys verzilini, and Adocus is from Syromyatnikova(2011). 40
FIGURE 14. Temporal and geographic distribution of basal pantrionychians and adocids during the Late Jurassic–Cretaceous (modified from Danilov et al., 2011).... 44