Online resource 1 Character and character states used in the phylogenetic analysis of Gregorymys species
Characters
Continuous (additive by default)
0. p4-m3 length
1. Width i/P4-M3 length
2. Lower diastema length/P4-M3 length
3. Depth of mandible/P4-M3 length
4. P4-M3 length
5. Width I/P4-M3 length
6. Upper diastema length/P4-M3 length
7. Condylobasilar length/P4-M3 length
8. Palatal width/P4-M3 length
9. Depth of mandible/p4-m3 length
10. Lower diastema length/p4-m3 length
11. Width i/p4-m3 length
Discrete
12.Number of cusps on P4 metacone
13.Number of cusps on molars metaloph
14.Grooves on I
15.Accessorycuspid attached to protostylid
16.Anteroexternalcingularcuspid on lower molars
17.Supraorbital crests/flange ADDITIVE
18.Depthparapterygoid fossa ADDITIVE
19.Positionsphenopalatine foramina
20.Form external margin of lower incisives
21.Hypsodonty of teeth ADDITIVE
22. Shape upper diastema ADDITIVE
23.Size of optic foramen
24. Base of enamel on molars
25.Length of p4 relative to m1
26. Length of P4 relative to M1
27.Anterostylids on p4
28. Sagittal and lambdoidal crests
29. Rostral perforation
30.Narrow grooved palate
31. Incisive foramina
32. Position anterior alar fissure
33.Stapedial foramen ADDITIVE
34.Mandibular pit
35.Incisive roots
36.Slope of diastema in lateral view
37. Sphenopterygoid canal
38. Ethmoid foramina
39. Boss anterior to glenoid fossa
40. Interparietal width
41.Origin of temporal musculature ADDITIVE
42.External nares position
43.Medial processes of bullae
44.Position of optic foramina ADDITIVE
45. Incisive foramen length/diastemal length
46.Posterior alar fissure
47. Postglenoid foramen
Character states
0 to 11 are continuous.
12. (0) three cusps; (1) four cusps
13. (0) three cusps; (1) four cusps; (2) two cusps
14. (0) absent; (1) present
15. (0) absent; (1)present
16. (0) present; (1) absent
17. (0) absent; (1) weak; (2) strong
18. (0) shallow; (1) moderate; (2) deep
19. (0) dorsal M1; (1) P4-M1;(2) P4; (3) M2
20. (0) rounded; (1)flat
21. (0) brachydont; (1) mesodont; (2) hypsodont; (3) hypselodont
22. (0) flat; (1) curved (2) strongly curved
23. (0) > 1mm (1)=< 1mm
24. (0) not undulating; (1) undulating
25. (0) p4=< m1; (1)p4>m1
26. (0) P4=< M1; (1)P4>M1
27. (0) absent; (1) present
28. (0) weak; (1) strong
29. (0) absent; (1) present
30. (0) absent; (1) present
31. (0) not greatly reduced; (1) greatly reduced
32. (0) not dorsal to posterior molars; (1) dorsal to posterior molars
33. (0) present; (1) pit; (2) absent
34. (0) absent; (1) present
35. (0) not extended; (1) extended
36. (0) not inclined anteriorly; (1) inclined strongly anteriorly
37. (0) absent; (1) present
38. (0) dorsal to M3; (1) M3/M2 junction; (2) mid M2 or anterior
39. (0) not present;(1) present; (2) very prominent
40. (0) wide, or constricted bybullar inflation; (1) narrow, unrelated to bullar inflation
41.(0) reach midline, or nearly so; (1) restricted laterally; (2) restricted very far laterally
42. (0) project significantly in front of upper I; (1) coincident with I in transverse plane
43. (0) do not meet; (1) meet
44. (0) posterodorsal to M3; (1) dorsal to M3;(2) dorsal to the junction of M2-M3; (3) dorsal to M2; (4)dorsal to the junction of M1-M2
45. (0) > 0.40; (1) 0.20 to 0.40; (2) 0.10 to 0.19
46. (0) absent; (1) present but separated from foramen ovale; (2)present and joined with foramen ovale
47. (0) in squamosal bone; (1) in squamosal bone and another between squamosal and periotic; (2) between bones and continuous with posterior alar fissure