Fig 1.
Terminology used in this paper to described molars, modified from Maridet et al. [11].
A, upper molar: 1. labial anteroloph; 2. protocone spur; 3. paracone; 4. mesostyle; 5. mesoloph; 6. neomesoloph; 7. metacone; 8. posterosinus; 9. metalophule; 10. posteroloph; 11. hypocone; 12. sinus; 13. entoloph; 14. protolophule; 15. protocone; 16. lingual anteroloph; 17. anterocone posterior spur; 18. anterocone. B, lower molar: 1. lingual anterolophid; 2. metaconid; 3. protoconid posterior arm; 4. mesosinusid; 5. mesostylid; 6. mesolophid; 7. entoconid; 8. posterolophid; 9. posterosinusid; 10. hypoconid posterior arm; 11. hypolophid; 12. hypoconid; 13. ectomesolophid; 14. mesoconid; 15. ectolophid; 16. protoconid; 17. labial anterolophid; 18. anteroconid; 19. anterolophulid; 20. metalophulid.
Fig 2.
Photograph of the Erden Obo section showing the stratigraphic exposure documenting from the “Middle White or Gray” to the “Upper White”.
Fig 3.
Partial skull and mandibles of Eucricetodon wangae sp. nov. (IVPP V 17807, holotype).
A, V 17807, ventral view of the skull; B-C, V 17807, left M1-2 and right M1-3 (with the maxillary bone photographically removed); D, V 17807, lower incisor in the right mandible; E, V 17807, labial view of the left mandible; F, V 17807, occlusal view of the right mandible; G, V 17807, labial view of the right mandible. B-C and E-G each to common scale.
Fig 4.
Cheek teeth of Eucricetodon wangae sp. nov. in occlusal view.
A, IVPP V 17808.3, left M1; B-E, V 17808.7–10, right M1; F-G, V 17808.11, V 17808.13, left M2; H-I, V 17808.17, V 17808.21, right M2; J, V 17808.22, left M3; K, V 17808.26, right M3; L-M, V 17808.28, V 17808.35, left m1; N, V 17808.39, right m1; O-P, V 17808.42–43, left m2; Q, V 17808.48, right m2; R-S, V 17808.54–55, right m3.
Table 1.
Measurements of teeth of Eucricetodon wangae sp. nov. (mm).
Table 2.
Comparison of measurements among Eucricetodon, Eocricetodon and Oxynocricetodon (mm).
Fig 5.
A-D, Cheek teeth of Eucricetodon sp. in occlusal view: A, IVPP V 17809.1, left M1; B, V 17809.3, right M1; C, V 17809.4, left m1; D, V 17809.7, right m1; 5E. V 17806, occlusal view of M1-2 of Pappocricetodon siziwangqiensis sp. nov.
Table 3.
Measurements of teeth of Eucricetodon sp. (mm).