Editorial Note V
Acknowledgements VI
Institutional Abbreviations VII
Figure Abbreviations VIII
Introduction 1
Infraorder Phthinosuchia ROMER 1961 3
Osteology 3
Family Phthinosuchidae EFREMOV 1954 3
Family Phthinosauridae TATARINOV 1974 4
Systematic Review 4
Family Phthinosuchidae EFREMOV 1954 4
Family Phthinosauridae TATARINOV 1974 5
Family indet 6
Infraorder Biarmosuchia nov. 8
Osteology 8
Skull 8
Postcranial Skeleton 11
Systematic Review 17
Family Biarmosuchidae OLSON 1962 19
Family Hipposauridae WATSON and ROMER 1956 19
Family Ictidorhinidae BROOM 1932 22
Family Burnetiidae BROOM 1923 25
Infraorder Eotitanosuchia BOONSTRA 1963 27
Osteology 27
Systematic Review 29
Family Eotitanosuchidae CHUDINOV 1960 29
Infraorder Gorgonopsia SEELEY 1895 31
Osteology 31
Skull 31
Postcranial Skeleton 41
Systematic Review 64
Family Watongiidae fam.nov. 64
Family Gorgonopsidae LYDEKKER 1890 65
Subfamily Gorgonopsinae SIGOGNEAU 1970 65
Subfamily Rubidgeinae SIGOGNEAU 1970 101
Subfamily Inostranceviinae subfam.nov. 111
Gorgonopsidae indet. 113
Gorgonopsia ? 114
Phylogenetic Relationships 116
Geographical and Stratigraphical Distribution 120
Literature cited 122
Index of Genera and Species 125