FIGURE 2. Guanlong wucaii (IVPP V14531).
From the following article:
A basal tyrannosauroid dinosaur from the Late Jurassic of China
Xing Xu, James M. Clark, Catherine A. Forster, Mark A. Norell, Gregory M. Erickson, David A. Eberth, Chengkai Jia and Qi Zhao
Nature 439, 715-718 (9 February 2006)
doi:10.1038/nature04511
a, b, Cranial reconstruction in left lateral (a; shaded area indicates the unpreserved portion) and dorsal (b) views. c, Close up of a premaxillary tooth. d, Ventral view of left manus. e, Pelvis in right lateral view. f, Ventral view of left pes. g, Histological section from the fibular shaft of Guanlongwucaii (IVPP V14531), shown in polarized microscopy (original magnification 
6.5). Numbers and arrows denote growth lines used to age the specimen (see Supplementary Information for a detailed explanation). adc, anterodorsal concavity; al, anterior lamina; an, angular; aof, antorbital fenestra; d, dentary; dg, dentary groove; emf, external mandibular fenestra; en, external naris; if, infratemporal fenestra; isf, foramen on ischium; j, jugal; jp, pneumatic jugal foramen; l, lacrimal; m, maxilla; mc I–IV, metacarpals I–IV; mo, maxillary opening; mt I–V, metatarsals I–V; mvc, median vertical crest; nc, nasal crest; obf, obturator foramen; orb, orbit; pf, prefrontal; pfe, pneumatic fenestra; pl, posterior lamina; pm, premaxilla; po, postorbital; pr, pneumatic recess; qj, quadratojugal; ri, right ilium; ris, right ischium; rp, right pubis; sa, surangular; sac, sacrum; sc, sagittal crest; sec, semilunate carpal; sq, squamosal; tp, tubercle on pubis; tr, transverse ridge. Scale bar: 5 cm (a, b), 7 cm (d), 12 cm (e) and 8 cm (f).