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Figure 13 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 13. Eocursor parvus, holotype (SAM-PK-K8025). Pelvic elements. Left ilium in lateral (A), dorsal (B), and medial (C) views. Preacetabular process of right ilium in lateral (D) and medial (E) views. F, tibial block containing pubic shafts and proximal left and right ischia. The left ischium is visible in dorsomedial view, the right ischium is visible in medial view. Proximal part of left pubis in lateral (G) and medial (H) views. Proximal part of right pubis in lateral (I) and medial (J) views. Abbreviations: acem, acetabular margin; brs, brevis shelf; ds?, possible attachment site for the rib of the dorsosacral; fpp, facet for articulation with the pubic peduncle of the ilium; gr, groove; iscpd, ischial peduncle; lip, iliac process of left ischium; lisc, left ischium; lpp, pubic process of left ischium; lpub, left pubic shaft; obt, obturator foramen of pubis; pace, postacetabular process; pisc, surface for articulation with pubic process of ischium; ppp, postpubic process; pre, preacetabular process; prp, prepubic process; pupd, pubic peduncle; rip, iliac process of right ischium; risc, right ischium; rpub, right pubic shaft; saf, supraacetabular flange; sr2, attachment site for rib of sacral 2; sr3-5, attachment site for ribs of sacrals 3–5. Scale bar = 10 mm.

Figure 4 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 4. Eocursor parvus, holotype (SAM-PK-K8025). Parabasisphenoid in ventral (A) and left lateral (B) views. Abbreviations: bpt, basipterygoid processes; clf, cultriform process; clp, caudolateral process of basisphenoid; for, foramen; lbf, lateral basisphenoid fossa; prpe, preotic pendant. Scale bars = 10 mm.

Figure 1 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 1. Eocursor parvus, skeletal restoration produced by Scott Hartman. Elements missing from the holotype specimen of Eocursor (SAM-PK-K8025) are restored after Lesothosaurus diagnosticus (e.g. Thulborn, 1970a, 1972; Sereno, 1991).

Figure 12 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 12. Eocursor parvus, holotype (SAM-PK-K8025). A, block containing elements of the manus in dorsal view. B, elements of digit 'A' in either lateral or medial view. Abbreviations:?mc, possible metacarpal;?mc5, possible metacarpal 5; pA1, pA2, pA3, phalanges of digit 'A'; pB1, pB2, phalanges of digit 'B'; smp, small phalanx. Scale bars = 10 mm.

Figure 5 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 5. Eocursor parvus, holotype (SAM-PK-K8025). Right hemimandible in lateral (A) and medial (B) views, and an isolated cheek tooth (C). Abbreviations: add, adductor fossa; ang, angular; cnd, coronoid process of dentary; emf, external mandibular fenestra; mc, mandibular canal; rap, retroarticular process; rbe, ridge demarcating lateral extent of buccal emargination; ref, replacement foramina; sa, surangular; spl, surface for splenial; sr, weak ridge on lateral surface of surangular; sym, inturned dentary symphysis. Scale bars = 10 mm (A, B) and 2 mm (C).

Figure 3 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 3. Eocursor parvus, holotype (SAM-PK-K8025). Supraoccipital in left caudolateral (A), left lateral (B), and caudal (C) views. Abbreviations: lc, concave lateral flange; pr/ex-op, surface for the prootic (rostrally) and ex-op (caudally); cpl, surface for the caudolateral wing of the parietal; ri, low midline ridge. Scale bars = 10 mm.

Figure 2 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 2. Eocursor parvus, holotype (SAM-PK-K8025). Parietal (within 'tibial block'), dorsal view. Abbreviations: add, arcuate depression for the adductor musculature; fr, sutural surface for the frontal; clw, caudolateral parietal wings; rlp, rostrolateral process; stf, position of the supratemporal fenestra. Scale bar = 10 mm.

Figure 11 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 11. Eocursor parvus, holotype (SAM-PK-K8025). Stereopair photographs of block containing elements of the manus. See Figure 12 for identification of elements. Scale bar = 10 mm.

Figure 9 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 9. Eocursor parvus, holotype (SAM-PK-K8025). Elements preserved within the 'tibial block', including the neural spine and arch of the possible dorsosacral vertebra and the left ischium (A), and the right fibula, parietal, and possible sacral centrum (B). Abbreviations: dcen, centrum of dorsal vertebra; dfib, distal right fibula; dna, dorsal neural arch;?ds, possible dorsosacral neural arch; pfib, proximal right fibula;?s, possible sacral neural arch;?scen, possible sacral centrum. Scale bars = 10 mm.

Figure 10 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 10. Eocursor parvus, holotype (SAM-PK-K8025). Right scapula in lateral (A), medial (B), and dorsal (C) views. Left scapula in ventral (D), lateral (E), and medial (F) views. Right humerus in cranial (G), caudal (H), lateral (I), and proximal (J) views. Radius in lateral view (K). Abbreviations: acr, acromion process; dpc, deltopectoral crest; gl, glenoid; hh, head of humerus; scb, supraglenoidal buttress. Scale bar = 10 mm.

Figure 7 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 7. Eocursor parvus, holotype (SAM-PK-K8025). A, cranial cervical vertebra in left lateral view. Cervical centrum in right lateral (B) and ventral (E) views. Caudal cervical or cranial dorsal centra in right lateral (C, D) and ventral (F, G) views. Sacral centrum in dorsal (H) and ventral (I) views. Caudal vertebra in right lateral (J) and ventral (K) views. Abbreviations: car, caudal rib; dia, diapophysis; ns, neural spine; pa, parapophysis; poz, postzygapophysis; pre, prezygapophysis. Scale bars = 10 mm.

Figure 14 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 14. Eocursor parvus, holotype (SAM-PK-K8025). Drawings of pelvic elements. Left ilium in lateral (A) and medial (B) views. Preacetabular process of right ilium in medial (C) and lateral (D) views. Ischia (E); left ischium is visible in dorsomedial view, right ischium is visible in medial view. Proximal part of left pubis in medial (F) view. Abbreviations: brs, brevis shelf; ds?, possible attachment site for the rib of the dorsosacral; fpp, facet for articulation with the pubic peduncle of the ilium; gr, groove; iscpd, ischial peduncle; lip, iliac process of left ischium; lisc, left ischium; lpp, pubic process of left ischium; obt, obturator foramen of pubis; pace, postacetabular process; pisc, surface for articulation with pubic process of ischium; ppp, postpubic process; pre, preacetabular process; prp, prepubic process; pupd, pubic peduncle; rip, iliac process of right ischium; risc, right ischium; rpp, pubic process of right ischium; saf, supraacetabular flange; sr2, attachment site for rib of sacral 2; sr3-5, attachment site for ribs of sacrals 3–5. Scale bars = 10 mm.

Figure 6 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 6. Eocursor parvus, holotype (SAM-PK-K8025). Stereopair photographs and interpretive drawing of the 'braincase block'. Abbreviations: bs, basisphenoid; clf, cultriform process; cv, cervical vertebra; dna, dorsal neural arch; ns, neural spine; tp, transverse process. Scale bar = 20 mm.

Figure 8 in The anatomy of the basal ornithischian dinosaur Eocursor parvus from the lower Elliot Formation (Late Triassic) of South Africa

Figure 8. Eocursor parvus, holotype (SAM-PK-K8025). Isolated dorsal centra in ventral (A), lateral (B), dorsal (C), and terminal (D) views. The centrum at the far right of the figure is the possible dorsosacral centrum. Scale bar = 10 mm.

Figure 1 in A juvenile skull of Dysalotosaurus lettowvorbecki (Ornithischia: Iguanodontia), and implications for cranial ontogeny, phylogeny, and taxonomy in ornithopod dinosaurs

Figure 1. Reconstruction and comparison of the skull BSPG AS I 834 with the reconstruction of an older individual (modified from Janensch, 1955). The reconstruction of the juvenile skull was carried out by the combination of the frontoparietal plate, the left postorbital, the left squamosal, a combination of the left and the head of the right quadrate, the left jugal, the braincase, the right maxilla, the left laterodorsal maxillary process, and finally the right lower jaw with the left articular. Dark grey illustrates the skull openings, light grey illustrates the inner views of, e.g. the maxilla or the frontal, and the greyish pattern on the lower jaw and the braincase illustrates sediment. A, dorsal view of the skull reconstructed by Janensch (1955). B, left lateral view of the skull reconstructed by Janensch (1955). C, dorsal view of the reconstruction of BSPG AS I 834. For the unlabelled elements see the corresponding elements in (A). D, left lateral view of the reconstruction of BSPG AS I 834. For the unlabelled elements see the corresponding elements in (B). Note, for example, the difference of the mandibular articulation between (B) and (D). Furthermore, Janensch (1955) indicated the unknown quadratojugal in (B). This is omitted here. See Material and methods for a list of the abbreviations. Scale bars: 1 cm.

Figure 8 in A juvenile skull of Dysalotosaurus lettowvorbecki (Ornithischia: Iguanodontia), and implications for cranial ontogeny, phylogeny, and taxonomy in ornithopod dinosaurs

Figure 8. Diagram resulting from the multivariate allometric analysis (MAA) of five measurements of the dentary carried out by the PAST program. The allometric coefficient is marked by the broad line imbedded in the 95% intervals. The numbers of the measurements are explained in Appendix S2.

Figure 2 in A juvenile skull of Dysalotosaurus lettowvorbecki (Ornithischia: Iguanodontia), and implications for cranial ontogeny, phylogeny, and taxonomy in ornithopod dinosaurs

Figure 2. Stereo pairs of the skull BSPG AS I 834 and explanatory sketches. The sketches are relatively enlarged for better resolution. Dark grey illustrates sediment, light grey illustrates inner views of, e.g. the frontals or the dentaries, and hatched areas illustrate broken or corroded surfaces. The label affixes -r and -l stand for right and left of the respective element, where the distinction of each side is difficult to see. A, left lateral view. B, outline drawing of the left lateral view. C, outline drawing of the occipital view. D, occipital view. See Material and methods for a list of the abbreviations. Scale bars: 1 cm.

Figure 6 in A juvenile skull of Dysalotosaurus lettowvorbecki (Ornithischia: Iguanodontia), and implications for cranial ontogeny, phylogeny, and taxonomy in ornithopod dinosaurs

Figure 6. Comparison of associated frontal pairs of two individuals of Dysalotosaurus, presented in articulation in dorsal view. A, the smallest frontals preserved (the left frontal GPIT/RE/1595/17; the right frontal GPIT/RE/1595/15). B, large frontals of the individual dyA (the right frontal MB.R.1377; the left frontal MB.R.1378). The orbital rim (or) is marked. Scale bar: 1 cm.

Figure 4 in A juvenile skull of Dysalotosaurus lettowvorbecki (Ornithischia: Iguanodontia), and implications for cranial ontogeny, phylogeny, and taxonomy in ornithopod dinosaurs

Figure 4. Computed tomography (CT) sections of the skull BSPG AS I 834. A, horizontal section at the level of the dentary tooth crowns in ventral view. B, sagittal section at about the sagittal midline in left lateral view. C, coronal section at about the middle of the anteroposterior length in anterior view. D, coronal section about 1 cm posterior to (C) in anterior view. See Material and methods for a list of the abbreviations.