Skeletal characters
|
Rostral radials
| |
12–15
|
?
|
7–17
|
7–10
|
10–16
|
Propterygial radials (excl. rostral)
| |
35
|
25
|
19–23
|
13–16
|
11–15
|
Mesopterygial radials
| |
10–12
|
?
|
16–23
|
24–28
|
30–37
|
Metapterygial radials
| |
40
|
?
|
41–52
|
41–53
|
55–66
|
Total pectoral radials (excl. rostral)
| |
87
|
?
|
79–92
|
79–92
|
89–116
|
Pelvic radials
| |
22–23
|
?
|
17–25
|
14–19
|
14–19
|
Monospondylous trunk vertebrae (excl. synarcual)
| |
20–22
|
?
|
24–32
|
31–42
|
31–41
|
Diplospondylous vertebrae (anterior to sting)
| |
148
|
?
|
34–48
|
5–20
|
13–31
|
Diplospondylous vertebrae (posterior to sting)
| |
50
|
?
|
36–47
|
34–36
|
25–33
|
Total vertebrae
| |
218
|
85 +?
|
108–117
|
80–86
|
80–97
|
Number of stings
| |
1
|
1
|
1–3
|
0–2
|
1–2
|
Compagibus laminam
| |
absent
|
present?
|
absent/present
|
present
|
present
|
Continuity pectoral - rostral radials
| |
continuous
|
?
|
continuous
|
interrupted
|
interrupted
|
Rostral radials less developed than pectoral radials
| |
yes
|
?
|
no
|
yes
|
yes
|
Mesopterygium
| |
single
|
fragmented?
|
fragmented
|
absent/fused
|
absent/fused
|
Puboischiadic bar
| |
slightly arched
|
?
|
slightly arched
|
slightly arched
|
greatly arched
|
Tooth characters
|
Medial teeth width/length ratio
|
Upper
|
3.6–4.1
|
6.0
|
3.0–7.0
|
4.0–18.0
|
10.0–13.0
|
Lower
|
3.8–4.5
|
6.0
|
3.0–5.0
|
4.0–18.0
|
6.0–11.0
|
Medial teeth shape
|
Upper
|
slightly bent
|
moderately bent
|
straight to moderately bent
|
straight to bent to M-shaped (adult)
|
straight to M-shaped
|
Lower
|
straight to slightly bent
|
almost straight
|
straight to moderately bent
|
straight to strongly bent
|
V-shaped
|
Lateral tooth row number
|
Upper
|
2
|
1
|
2–3
|
0–2
|
0
|
Lower
|
2
|
1
|
2–4
|
0–2
|
0
|
Posterior tooth row number
| |
1
|
1
|
1
|
0–1
|
0
|
Lateral teeth shape
| |
hexagonal/rhomboidal
|
hexagonal/square
|
hexagonal/square/lozenge
|
square/lozenge
|
–
|