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 6 Measurements of humeri of Hyrachyus modestus and Hyrachyus eximius (mm) APD = anteroposterior distance.

	Hyrachyus modestus (AMNH FM 12361)	Hyrachyus eximius (AMNH FM 5065-A)
1. Total length	150.0	210.0
2. Head, width	33.9	39.1
3. Head, APD	26.0	37.1
4. Shaft, minimum width	15.6	20.3
5. APD at minimum width	17.8	27.9
6. Distal end, maximum width	33.5	46.6
7. Width at humeral condyle	27.5	37.0
8. Trochlea, APD	22.9	33.4
9. Capitulum, APD	19.3	28.5
10. Intercondylar Groove, APD	15.5	21.3
11. Trochlea, Width	13.2	18.4
12. Capitulum, Width	13.3	18.1
Ratio (%)
4:1	10.4	9.7
5:4	114.0	137.1
6:1	22.3	22.2
8:7	83.1	90.4
9:8	84.6	85.2
12:11	100.9	98.2
10:8	67.8	63.7
10:9	80.2	74.8
3:2	76.7	94.9