Table 1 Measurements in millimeters of the premolar’s cusps (main row, on P4/) and serrations (on P/4) of Ectypodus from various Early Eocene European localities
P/4 | ?E. riansensis nov. sp. RI 273 | ?E. riansensis nov. sp. UMCLO 33 | Ectypodus childei M26617 | |||
|---|---|---|---|---|---|---|
Length (mm) | Height (mm) | Length (mm) | Height (mm) | Length (mm) | Height (mm) | |
Serration 2 | 0.52 | 0.14 | 0.40 | 0.07 | ||
Serration 3 | 0.40 | 0.11 | 0.27 | 0.05 | ||
Serration 4 | 0.39 | 0.12 | 0.39 | 0.13 | ?0.40 | 0.04 |
Serration 5 | 0.34 | 0.14 | 0.37 0.35 | 0.13 0.11 | 0.25 | 0.04 |
Serration 7 | 0.33 | 0.14 | 0.32 0.29 0.39 | 0.10 ?0.9 0.13 | 0.23 | 0.07 |
P4/ | ?E. riansensis nov. sp. RI 414 (mm) | ?E. riansensis nov. sp. UM CLO44 (mm) | Ectypodus tardus PU 17 674 (mm) | |||
|---|---|---|---|---|---|---|
Cuspules 2 | 0.28 | 0.28 | ||||
3 | 0.31 | 0.30 | 0.28 | |||
4 | 0.36 | 0.34 | 0.28 | |||
5 | 0.42 | 0.26 | ||||
6 | 0.36 | 0.28 | ||||
7 | 0.41 |