Table 2. Specimen measurements of the lower dentition of Brychotherium ephalmos.
| Brychotherium ephalmos | Element | Max. length | Max. trigonid length | Max. talonid length | Max. trigonid width | Max. talonid width | Talonid height | Paraconid height | Protoconid height |
|---|---|---|---|---|---|---|---|---|---|
| DPC 17627 | P4 | 7.15 | 5.48 | 1.49 | 3.65 | 3.18 | 3.54 | 2.6 | 6.08 |
| M1 | 7.56 | 4.85 | 2.52 | 4.18 | 3.2 | 2.98 | ∼4.17 | 5.8 | |
| M2 | 9.55 | 5.4 | 3.86 | 5.1 | 3.47 | 3.08 | 6.23 | 8.85 | |
| M3 | 10.19 | 7.22 | 2.8 | 5.12 | 2.31 | 2.55 | 7.12 | 9.48 | |
| CGM 83750 | C | 5.75 | — | — | — | — | — | — | — |
| P1 | 5.33 | 3.63 | 1.45 | 2.1 | 2.21 | 1.52 | — | ∼2.62 | |
| P2 | 6.52 | 5.06 | 1.47 | 3.08 | 2.85 | 1.48 | 2.67 | ∼3.8 | |
| P3 | 6.7 | 5.45 | 1.23 | 3.31 | 3.13 | 2.1 | 1.8 | ∼3.7 | |
| P4 | 7.01 | 5.21 | 1.86 | 3.6 | 3.57 | 2.7 | 2.8 | ∼4.75 | |
| M1 | 6.25 | 4.24 | 2.06 | 3.89 | 3.49 | 2.67 | ∼2.16 | ∼3.6 | |
| M2 | 8.17 | 5.29 | 2.57 | 4.61 | 3.97 | 2.95 | ∼3.98 | ∼5.95 | |
| M3 | 9.35 | 6.49 | 2.97 | 5.43 | 3.55 | 2.69 | 5.23 | 7.29 | |
| DPC 11569A | C | 5.35 | — | — | — | — | — | — | — |
| P2 | 5.18 | 4.33 | 0.81 | 2.51 | 1.69 | 0.61 | — | 3.4 | |
| P3 | 6.37 | 5.2 | 1.02 | 2.5 | 1.72 | 1.07 | 1.09 | ∼3.10 | |
| P4 | 6.94 | 5.55 | 1.41 | 3.1 | 2.19 | 2.37 | 1.62 | 5.21 | |
| M1 | 6.06 | 3.77 | 2.35 | 3.02 | 2.34 | 2.24 | ∼3.83 | ∼4.33 | |
| M2 | ∼7.68 | 5.07 | ∼2.57 | 4.13 | ∼2.27 | — | 4.46 | 6.52 | |
| M3 | 9.68 | 6.81 | 2.81 | 4.92 | 2.46 | 1.93 | 5.91 | 8.24 | |
| DPC 11569B | C | 4.38 | — | — | — | — | — | — | — |
| P2 | ∼4.6 | — | 1.17 | 2.31 | 1.84 | 0.78 | — | — | |
| P3 | 6.68 | 5.05 | 1.68 | 2.31 | 2.1 | 1.31 | 1.13 | 3.6 | |
| P4 | — | — | ∼1.66 | — | 2.46 | ∼1.76 | — | — | |
| M1 | 6.16 | 4.07 | 2.09 | 2.73 | 2.28 | 2.39 | ∼3.20 | ∼4.95 | |
| M2 | 7.52 | 4.95 | 2.62 | 3.95 | 2.42 | 2.88 | 4.54 | 6.32 | |
| M3 | 9.07 | 6.52 | 2.54 | 4.69 | 2.19 | 1.77 | 5.87 | 7.74 | |
| Tooth length | C | P1 | P2 | P3 | P4 | M1 | M2 | M3 | |
| N | 3 | 1 | 2 | 3 | 3 | 4 | 3 | 4 | |
| Mean (Std. Dev.) | 5.16 (0.70) | 5.33 | 5.85 (0.95) | 6.58 (0.19) | 7.03 (0.11) | 6.51 (0.71) | 8.41 (1.04) | 9.57 (0.48) |
Notes:
Max. length, maximum mesiodistal length; Max. trigonid length, maximum mesiodistal length of trigonid; Max. talonid length, maximum mesiodistal length of talonid; Max. trigonid width, maximum buccolingual width of trigonid; Max. talonid width, maximum buccolingual talonid width; Talonid height, tallest point on talonid to alveolar margin; Paraconid height, apex of paraconid to alveolar margin; Protoconid height, maximum height from cristid obliqua to cusp apex. Std. Dev., standard deviation.
Measurements preceeded by “∼” indicate measurement taken from a heavily worn cusp.
Summary statistics only include specimens with minimal wear.