A high-resolution growth series of Tyrannosaurus rex obtained from multiple lines of evidence
Author
Carr, Thomas D.
Department of Biology, Carthage College, Kenosha, WI, USA
text
PeerJ
2020
8
e 9192
e 9192
journal article
224105
10.7717/peerj.9192
d363523c-cf93-410c-808d-0da6b8d62ff6
5824972
Table 4 Summary of synontomorphies and individual variation in Tyrannosaurus rex organized by growth category and functional modules of the skull and jaws. Summary of the number of unambiguously optimized changes recovered for the craniomandibular skeleton of Tyrannosaurus rex, organized by functional modules (sensu Werneburg et al., 2019). Individual variation is shown in parentheses.| Growth category | Skull roof | Snout + palate | Parietal | Suspensorium | Braincase | Mandible | Total |
|---|
| Small juvenile | 3 (3) | 0 (1) | 0 (2) | 0 (0) | 0 (0) | 2 (0) | 5 (6) |
|---|
| Large juvenile | 15 (6) | 30 (5) | 0 (0) | 1 (0) | 0 (0) | 7 (3) | 53 (14) |
|---|
| Subadult | 58 (2) | 0 (0) | 0 (2) | 0 (0) | 0 (0) | 0 (1) | 58 (5) |
|---|
| Young adult | 17 (38) | 13 (23) | 11 (10) | 5 (8) | 14 (8) | 7 (11) | 67 (98) |
|---|
| Adult | 14 (51) | 15 (28) | 1 (9) | 7 (15) | 8 (21) | 11 (27) | 56 (151) |
|---|
| Senescent adult | 10 (n/a) | 2 (n/a) | 0 (n/a) | 2 (n/a) | 1 (n/a) | 0 (n/a) | 15 (n/a) |
|---|
| Total | 117 (100) | 60 (57) | 12 (23) | 13 (23) | 25 (29) | 27 (42) | 254 (274) |
|---|