Europe: Andrews, [8]; Atthey, n; Bailey, [12-13]; Barkas, [15-20]; Bolton, [42-43]; Credner, [179-194] (see also under Permian); Davis, [199]; Dunlop, [229]; Embleton and Atthey, [235]; Etheridge, [241]; Fritsch, [251]; Gaudry, [263-268], [278], [281], [282]; Gergens, [291]; Goldfuss, [297]; Hancock and Atthey, [304-310]; Lydekker, [394]; von Meyer, [422], [426], [436]; Oldham, [500]; Owen, [507-509], [514], [515]; Schwarz, [540]; Thevenin, [565-568]; Weiss, [597]; Woodward, [629], [630]; Woodworth, [636].
Australia: Stephens, [557]; Woodward, [634].
Permian:
North America: Broili, [55], [56], [58], [63], [65]; Case, [86-93], [95-100]; Cope, [129], [132-133], [137], [138], [140-144], [156], [169], [170-175]; Emmons, [237]; Gregory, [299]; W. D. Matthew, [414], [415]; Moodie, [457], [458], [476], [477]; Sternberg, [558]; Strickler, [564]; Williston, [607], [609], [610], [614], [615], [616], [617-624].
Europe: Ammon, [7]; Branco, [48]; Broili, [59], [60], [61], [62], [66]; Credner, [179-195]; Deichmueller, [224], [225]; Eichwald, [233]; Emery, [236]; Fritsch, [251]; Gaudry, [258-261], [269-282]; Geinitz, [287]; Geinitz und Deichmueller, [289], [290]; Goldfuss, [295], [296]; von Huene, [324-327]; Huxley, [328]; Jaekel, [344], [345]; Le Roy, [375]; Lloyd, [379]; Lortet, [382]; von Meyer, [428], [436], [442]; Roemer, [534]; Trautschold, [573]; Twelvetrees, [576].
Africa: Broom, [68-71-73], [74].
Asia: Lydekker, [384], [386]; Huxley, [333]; Woodward, [633].
Triassic:
North America: Branson, [49]; Cope, [106], in, [121], [157]; Emmons, [237]; Leidy, [373]; Lucas, [383].
Europe: Alberti, [4]; Burmeister, [80], [81]; Fraas, [242-245], [247a]; von Huene, [323]; Huxley, [329]; Jaeger, [338-341]; Metcalfe, [417]; von Meyer, [421], [425], [439]; Miall, [453]; Owen, [505]; Quenstedt, [527]; Seeley, [544]; Storrie, [560]; Ward, [588]; Wiedersheim, [602]; Woodward, [631].