APPENDIX 1. A in Craniofacial ontogeny in Tyrannosauridae (Dinosauria, Coelurosauria)

APPENDIX 1. A genus-level comparison of tyrannosaurids: the growth changes of Albertosaurus libratus compared with the homologous characters in Daspletosaurus torosus and Tyrannosaurus rex. Abbreviations: aofen, antorbital fenestra; aofo, antorbital fossa; artic, articular; basis pn for, basisphenoid pneumatic foramen; cdrsl, caudodorsal; cnflt, confluent; cnvx, convex; corn, cornual; dtf, dorsotemporal fossa; fen, fenestra; hrz, horizontal; intramnd, intramandibular; ltfen, laterotemporal fenestra; M. add mand ext, Musculus adductor mandibular pars externus; max, maxilla; occ con, occipital condyle; pn, pneumatic; po, postorbital; pr, process; qj, quadratojugal; rd, rostrodorsal; rv, rostroventral; sbn, subnarial; shllw, shallow; smth, smooth; sq, squamosal; surf, surface.