Table 3. Measurements of the mandible of Plesiaceratherium tongxinense sp. nov. (IVPP V 23959).
(mm) (Measurements of P. gracile, P. fahlbuschi, P. platyodon, and P. mirallesi are from Yan & Heissig (1986)).
numbers | measures | P. tongxinense sp. nov. | P. gracile | P. fahlbuschi | P. platyodon |
---|---|---|---|---|---|
1 | Distance between anterior end of symphysis and mandible angle | 470 | 433–435 | 435 | 455 |
2 | Distance between posterior end of symphysis and mandible angle | 317 | – | – | – |
3 | Height of horizontal part of ramus at posterior edge of p2 | 61 | – | – | – |
4 | Height of horizontal part of ramus at posterior edge of p3 | 65 | – | – | – |
5 | Height of horizontal part of ramus at posterior edge of p4 | 68 | – | – | – |
6 | Height of horizontal part of ramus at posterior edge of m1 | 80 | – | – | – |
7 | Height of horizontal part of ramus at posterior edge of m2 | 89 | – | – | – |
8 | Height of horizontal part of ramus at posterior edge of m3 | 98 | 79–88 | 85–77 | 85 |
9 | Transverse diameter of lingual edge of horizontal part of ramus at p4-m1 | 52 | – | – | – |
10 | Transverse diameter of lingual edge of horizontal part of ramus at anterior edge of m3 | 61 | 19–21 | 35 | 34 |
11 | Length of symphysis along median plane | 153 | 89–96 | 80–108 | 96 |
13 | Antero-posterior diameter of vertical part of ramus | 131 | – | – | – |
14 | Transverse diameter of condyle | 88 | – | – | – |
15 | Height of condyle | 238 | – | – | – |
16 | Height of coronoid process | 279 | – | – | – |