Table 1. Data matrix.
Data matrix used in the phylogenetic analysis.
| Angusaurus spp. | 1110011111 | 0100111011 | 1121100010 | 0010011010 | 1111100000 | 100100 |
| Benthosuchus sushkini | 1100101101 | 0101110011 | 0110100011 | 0011011100 | 0011000000 | 100100 |
| Calmasuchus acri | 0101000?00 | 11?1?1?102 | 00001?1011 | 111????112 | 0011000001 | 011??1 |
| Cherninis denwai | 0101100200 | 1112010000 | 0000111011 | 11111111?? | ?????0000? | 100010 |
| Cyclotosaurus robustus | 0101000200 | 1111001200 | 1010111111 | 1111111122 | 10???10110 | 002111 |
| Edingerella madagascariensis | 010010[01]200 | 1111100001 | 00001[01]1010 | 10010?1101 | 001?011000 | 000100 |
| Eocyclotosaurus spp. | 1101101201 | 0112111002 | 1110111111 | 10111111?2 | ?????10010 | 122111 |
| Eryosuchus garjainovi | 010110020[01] | 111101110[01] | 0000111011 | 1111111122 | 1011000101 | 000000 |
| Lydekkerina huxleyi | 0110000100 | 0101000002 | 0000100001 | 0010001010 | 0011000000 | 000000 |
| Mastodonsaurus giganteus | 0101001201 | 1101011102 | 1010111111 | 1111111122 | 1111000110 | 100011 |
| Odenwaldia heidelbergensis | 110010020? | ?1110?0??2 | ????????1? | ??111?11?? | ?????00??? | 100?1? |
| Paracyclotosaurus crooshkanki | 0101100200 | 1112010102 | 100?111111 | 11111111?? | ?????1111? | 11101? |
| Parotosuchus orenburgensis | 0100100200 | 1112010100 | 0010111011 | 1111111111 | 0011000001 | 100100 |
| Procyclotosaurus stantonensis | 1101100200 | 111201100? | 0???1??111 | ?1111111?? | ?????0111? | 1[12]1?11 |
| Quasicyclotosaurus campi | 0101101201 | 0102101002 | 001011?111 | 10??111111 | 10???10110 | 122111 |
| Rhineceps nyasaensis | 0000000000 | 0001000000 | 0000000000 | 0000000100 | 0000000000 | 00010? |
| Tatrasuchus wildi | 0101?00200 | 1111000200 | 0000111011 | 1111111111 | 1111010111 | 001111 |
| Thoosuchus yakovlevi | 1100011111 | 0100110012 | 0121100000 | 0010011000 | 1111100000 | 100100 |
| Trematosaurus brauni | 1110011111 | 01001110?2 | 1121???010 | 01100?1020 | 1111100000 | 100100 |
| Stanocephalosaurus birdi | 0101000200 | 1112011 001 | 0001111111 | 1111111111 | 0011011011 | 111001 |
| Stanocephalosaurus pronus | 0101000200 | 1112011000 | 0001111111 | 1111?11111 | 00?1011010 | 111001 |
| Uranocentrodon senekalensis | 0000000000 | 0000000000 | 0000000001 | 0?00000100 | 0000000000 | 000000 |
| Vladlenosaurus alexeyevi | 1100100200 | 0110010010 | 01001?1011 | 1???????11 | ?11?000000 | 100111 |
| Watsonisuchus spp. | 0100100200 | 1112010010 | 0000111011 | 1011111111 | 0011011000 | 100100 |
| Wetlugasaurus angustifrons | 010010020[01] | 0111010010 | 0100111011 | 0101111111 | 1011000000 | 100100 |
| Xenotosuchus africanus | 0101100200 | 1111011000 | 0000111011 | 11?1111111 | 0011011100 | 10010? |
| Antarctosuchus polyodon | 0?0??012?0 | 111201110? | 10?0110111 | 10??1111?? | ???????11? | 11?101 |
| Yuanansuchus laticeps | 0102101211 | 010100100? | 0000111011 | 1?111111?? | ?????1100? | 2010?1 |
| Yuanansuchus maopingchangensis | 0102101201 | 1101101002 | 0000111011 | 11?11111?? | ?????110?? | 102100 |
| Yuanansuchus maopingchangensis | 0102101201 | [01]101101002 | 0000111011 | 11?11111?1 | 01110110?? | 102100 |
Notes.
The taxa in the matrix include all 26 species analyzed by Fortuny, Galobart & De Santisteban (2011), plus Antarctosuchus, Yuanansuchus laticeps and Y. maopingchangensis. Codings for most species were adapted from Schoch (2008) and Fortuny, Galobart & De Santisteban (2011), but codings for Antarctosuchus were adapted from Sidor, Steyer & Hammer (2014) and the two species of Yuanansuchus were coded based on personal observation of specimens. Y. maopingchangensis was coded primarily based on the holotype, and secondarily with reference to other known specimens. A few previous codings are revised here based on photos and the literature. Character 4 is redefined and following the coding of Schoch (2008). Character 49 here was coded as (0) in Antarctosuchus by Sidor, Steyer & Hammer (2014) but changed to (1) here. The coding of character 35 is changed from 0 to 1 for Quasicyclotosaurus following Schoch (2008) and for Y. laticeps.