TABLE 1. Measurements of the upper dentition. Asterisk indicates the measurements are based on the alveoli of the tooth. Length is mesiodistal length. Width is buccolingual length. ~, indicates an approximate measurement based on fragmentary material. See methods for definitions of these measurements.
| Taxon | Specimen | Tooth | Length | Width |
| Apterodon macrognathus | DPC 4126 | dP3* | 10.8 | 4.9 |
| dP4 | 15.6 | 9.0 | ||
| Leakitherium hiwegi | KNM-RU 2949 | dP3 | 15.4 | 10.8 |
| dP4 | 16.7 | 13.4 | ||
| Leakitherium hiwegi | KNM-RU 15182 | dP3 | 15.2 | 14.0 |
| dP4 | ~16.5 | 17.5 | ||
| Anasinopa leakeyi | KNM-RU 2385 | dP2 | 9.0 | 3.7 |
| dP3 | 9.6 | 6.7 | ||
| dP4 | 10.2 | 9.2 | ||
| Dissopsalis pyroclasticus | KNM-FT 3357 | dP3 | 15.4 | 9.2 |
| dP4 | 15.6 | 13.4 | ||
| M1* | 15.5 | 16.0 | ||
| Masrasector nananubis | DPC 20882 | dP3 | 4.8 | ~3.0 |
| dP4 | 4.4 | 2.7 | ||
| Masrasector nananubis | DPC 13837 | dP3 | 5.0 | 3.0 |
| dP4 | 5.0 | 3.4 | ||
| M1 | 5.7 | 4.5 | ||
| Metasinopa sp. | DPC 10199 | dP3 | 10.5 | 5.1 |
| dP4 | 10.9 | 7.1 | ||
| M1 | 12.5 | 11.7 |
TABLE 2. Measurements of the lower dentition. Asterisk indicates the measurements are based on the alveoli of the tooth. Length is mesiodistal length. Width is buccolingual length. ~, indicates an approximate measurement based on fragmentary material. See methods for definitions of these measurements.
| Taxon | Specimen | Tooth | Length | Width |
| Apterodon macrognathus | DPC 8217 | dP3 | 11.7 | 3.8 |
| dP4 | 15.7 | 4.9 | ||
| M1 | 14.0 | 6.5 | ||
| Anasinopa libyca | BMNH M82378 | dP3 | 9.9 | 2.2 |
| dP4 | 11.7 | 3.6 | ||
| Masrasector nananubis | DPC 10358 | dP3 | 5.2 | 1.6 |
| dP4 | 5.0 | 2.2 | ||
| M1 | 4.7 | 2.6 | ||
| M2 | 5.6 | 3.3 | ||
| Masrasector nananubis | DPC 18276 | dP2 | 3.9 | 1.5 |
| dP3 | 5.1 | 1.6 | ||
| dP4 | 4.7 | 1.8 | ||
| Metasinopa sp. | DPC 4544 | P2 | 9.2 | 2.4 |
| dP3* | 12.0 | 2.6 | ||
| dP4* | 10.4 | 3.0 | ||
| M1 | 10.6 | 4.7 | ||
| M2 | 12.6 | 5.2 | ||
| M3 | ~13.82 | 4.3 |
TABLE 3. Dental eruption sequences of Hyaenodonta and Ferae. Upper and lower eruption sequences are separated for this study because no hyainailouroid specimen directly reveals the relationship between the timing of eruption in the upper and lower dentition. Sequence reads from left to right with m-dashes identifying subsequent events. Tooth positions contained in parentheses are unknown. Tooth positions with an asterisk are variable within the group. Note that taxa listed in “Group” are not all the same taxonomic level.
| Group | Eruption of Upper dentition | Eruption of lower dentition | Reference |
| Hyainailouroidea synthesis | M1-M2- M3-P4 or P3 (P2, C) | M1-M2-P-P3-M3-P4-C | This study |
| Apterodon macrognathus | M1-M2 | This study | |
| Masrasector nananubis | M1-?-?-P3-P4 | M1-M2-P2-P3-M3-P4-C | This study |
| Metasinopa | M1-M2-P2-P3-M3-P4-C | This study | |
| Brychotherium ephalmos | M1-M2-M3-P4 | This study | |
| Leakitherium hiwegi | ?P4-P3 | This study | |
| North American Hyaenodon | M1-I- P2-P4-M 2-P3-C | M1-M2-I-P2-P4-M3-P3-C | Bastl and Nagel, 2013 |
| European Hyaenodon | M 1-P1-I- P2-P 4-M2-P3-C | M1-P1-M2-I-P2-C, P3, M3-P4 | Bastl and Nagel, 2013 |
| Lesmesodon | I-P1-M1-M2-C- P 2 | I-P1-M1-M2-C-P2 | Morlo and Habersetzer, 1999 |
| Oxyaena woutersi | M1-P4-P2-P 3 (M2) | Solé et al., 2011 | |
| Didymictis protenus | M1-P2 /P3 /P4 | P2 /M1 /M2-P3 /P4 | Zack, 2012 |
| Viverridae | M1-P4-P2 *- P3-M2* | M1-M2-P2 *-P3-P4 | Slaughter et al., 1974 |
| Felidae | P2 / M1-P4-P3 | M 1-P 4-P 3 | Slaughter et al., 1974 |
| Mustelidae | M1-P4-P2-P3 | M1-M2-P2*-P3-P4 | Slaughter et al., 1974 |
| Canidae | M1-M2-P4-P2-P3 | M1 /M 2-M3*-P2*-P4-P3 | Slaughter et al., 1974 |
