Osteology Of The Middle Eocene Ceratomorph Hyrachyus Modestus (Mammalia, Perissodactyla) Author Bai, Bin Author Meng, Jin Author Wang, Yuan-Qing Author Wang, Hai-Bing Author Holbrook, Luke text Bulletin of the American Museum of Natural History 2017 2017-06-09 2017 413 1 68 http://www.bioone.org/doi/10.1206/0003-0090-413.1.1 journal article 10.1206/0003-0090-413.1.1 0003-0090 4612938

TABLE 12 Measurements of femora of Hyrachyus modestus (mm) APD = anteroposterior distance.

	AMNH FM 12664	AMNH FM 11662
TABLE 14 Measurements of tibiae of Hyrachyus modestus (mm) APD = anteroposterior distance.
1. Total length	227.0	241.8
2. Head, maximum APD	26.9	34.2
3. Proximal end, maximum width	60.8	60.9
4. Distal end, width	45.5	53.9
5. Distal end, APD	53.2	57.0
6. Greater trochanter, maximum APD	42.7	39.7
7. Trochlea, medial length	38.7	60.5
8. Trochlea, lateral length	41.5	54.5
9. Trochlea, length of middle groove	32.4	38.5
10. Medial condyle, length×width	27.9×16.26	28.3×17.3
11. Lateral condyle, length×width	29.57×19	34.1×21.8
Ratio (%)
3:1	26.8	25.2
4:1	20.0	22.3
1. Total length	192.0	219.8
2. Proximal end, width	52.2	54.31
3. Proximal end, APD	48.5	48.54
4. Distal end, width	29.0	31.96
5. Distal end, APD	26.3	26.44
6. Width at middle of shaft	20.4	18.72
7. Medial condyle, width×APD	12.06×23.29	12.51×22.39
8. Lateral condyle, width×APD	14.31×20.14	15.52×18.28
9. Trochlea, width	25.4	25.22
10. Trochlea, APD	20.3	22.85
Ratio (%)
2:1	27.2	24.7
4:1	15.1	14.5
10:9	80.0	90.6