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52 results for “Hypselospinus”
Figure 52. A phylogeny derived from Figure 49 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 52. A phylogeny derived from Figure 49 calibrated, by reference to known stratigraphical ranges of individual taxa plotted, against the geological timescale. Approximate age ranges of known taxa are indicated by black rectangles, and where there are implied stratigraphical ranges these are indicated by connecting tramlines. In instances where implied divergence events have occurred and generated substantial ghost-ranges, these are indicated by cross-hatching.
Figure 50. A tree based upon the analysis that generated Figure 48 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 50. A tree based upon the analysis that generated Figure 48, with particular nodes and stems named (see text for discussion/explanation). Abbreviations: CI, consistency index; RC, rescaled consistency index; RI, retention index.
Figure 48 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 48. Topology of a tree generated using the taxon-character matrix scored as in Appendix 2. This tree represents a strict consensus of the three most parsimonious trees created when the matrix was analysed with character scoring unordered and without weighting. The only ambiguity concerns the internal relationships between the taxa within the subclade referred to in Figures 49–50 as 'iguanodontoids'. Statistical support: consistency index: 0.578; retention index: 0.782; rescaled consistency index: 0.452. Tree length: 313 (minimum possible: 181, maximum possible: 786).
Figure 49 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 49. The tree used for Sereno's (1998, 2005) stabilized ornithopod clade nomenclature. Is this a stable tree? Specific points of contention include the status of: Hypsilophodontidae (status disputed, widely regarded as paraphyletic – Butler et al., 2008), Iguanodontia (constituent taxa and topographical position of Tenontosaurus disputed – here), Camptosauridae (status and constituent taxa uncertain – McDonald, 2011), Probactrosaurus (topographical position disputed – Norman, 2002, 2004; Wang et al., 2010; Wu & Godefroit, 2012), Iguanodontidae (family status disputed and inconsistent constituent taxa – here, Norman, 2004; Wu & Godefroit, 2012), Hadrosauriformes (constituent taxa disputed – here, Norman, 2004; McDonald, Barrett & Chapman, 2010a), Hadrosauroidea (topographical position of Ouranosaurus disputed – Norman, 2004; McDonald, Barrett & Chapman, 2010a; Wang et al., 2010; Wu & Godefroit, 2012).
Figure 46 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 46. Hypselospinus cf. fittoni. NHMUK R1834. Ilium (right, nearly complete). A, lateral; B, ventral view of postacetabular process; C, dorsal; D, medial. Abbreviations: ac, acetabulum; bl, abnormally truncated preacetabular process; brf, brevis fossa; fdm, flattened, narrow dorsal margin of the iliac blade; ip, ischiadic peduncle; lr, lateral ridge; mr, medial ridge; m.sc, blister-like strip of rugose tissue running parallel to the dorsal margin of the ilium; pp, pubic peduncle; prp, preacetabular process; th, dorsoventral thickening of the blister-like muscle scar. Scale bar = 10 cm.
Figure 51. A in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 51. A tree 'adjusted' (using the MacClade 4 tree window editor) by the addition of three operational taxonomic units (Batyrosaurus, Hypselospinus, and Ouranosaurus) that lie immediately basal to the 'iguanodontoid' subclade into the stem of that subclade (compare with Fig. 49). Tree length: 316 (consistency index: 0.57; retention index: 0.78).
Figure 44 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 44. Hypselospinus cf. fittoni. NHMUK R1834. Dentary (left, partial). A, medial (lingual); B, lateral (labial); C, dorsal. Abbreviations: am, alveolar margin; alv, alveolar trough; dias, margin forming a diastema; ds, dentary symphysis; mgr, Meckelian groove; sa.s, surangular suture; sl, posterior 'slot-and-lip' portion of the dentary symphysis; vc, vascular channel. Scale bar = 10 cm.
Figure 43 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 43. Hypselospinus cf. fittoni. NHMUK R1831 (R1835). Sternal apparatus. A, external (ventral); B, internal (dorsal). Abbreviations: apr, apron area of sternal blade; con, condylar area for attachment of dorsal rib cartilage; co.s, coracoid suture; 'h', sternal handles; iso, intersternal ossification; k, midline keeled structure traversed by strands of bony tissue; lf, lateral fingers of ossified tissue; st, sternal bone. Scale bar = 10 cm.
Figure 45 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 45. Hypselospinus cf. fittoni. NHMUK R1834. Vertebrae. A−C, representative dorsal centra. D, NHMUK R1635 (holotype) caudal vertebra. E, NHMUK R1834. Caudal vertebral centrum. Abbreviations: cf, chevron facet; cr, caudal rib (base of). Scale bar = 10 cm.
Figure 42 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 42. Hypselospinus cf. fittoni. NHMUK R1831 (R1833). Pubis (right) in lateral view. Abbreviations: ac, acetabular surface; ap, anterior ramus of the pubis; il.p, iliac peduncle; p.pu, posterior ramus of the pubis. Scale bar = 10 cm.
Figure 22 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 22. Hypselospinus cf. fittoni. NHMUK R604. Fourth dorsal. A, lateral; B, ventral; C, anterior. Abbreviations: dia, diapophysis; k, midline keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.
Figure 25 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 25. Hypselospinus cf. fittoni. NHMUK R604a. Dorsal ribs. A, right anterior; B, right middle; C, right middleposterior; D, right posterior. Abbreviations: ar, anterior curved ridge (for intercostal ligaments/muscles); cap, capitulum (rib head); n, neck of the rib; tub, tuberculum. Scale bar = 10 cm.
Figure 21 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 21. Hypselospinus cf. fittoni. NHMUK R604. Third dorsal. A, A1, lateral (A is a reversed image of the right side); B, ventral; C, anterior. Abbreviations: dia, diapophysis; k, midline keel; ncs, neurocentral suture; ns, neural spine; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.
Figure 17 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 17. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Ischium proximal portion (left). A, A1, lateral view; B, B1, medial view. Abbreviations: m.sc, muscle scars on lateral surface of shaft; obt, broken base of the obturator process; ri, prominent curved ridge that extends from the base of the obturator process to the posterior margin of the shaft distally. Hatching indicates broken and/or filled surfaces. Scale bar = 10 cm.
Figure 18 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 18. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Femur (left). A, anteromedial view; B, posterolateral view. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; br, broken base of the posterior lateral buttress; h, head of the femur; icg, anterior intercondylar groove; mb, medial posterior articular buttress; pig, posterior intercondylar groove. Crushing and plaster infill are clearly visible. Scale bar = 10 cm.
Figure 20 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 20. Hypselospinus cf. fittoni. NHMUK R604. First or second dorsal. A, lateral; B, anterior; C, ventral. Abbreviations: dia, diapophysis; k, midline keel; ncs, neurocentral suture; ns, neural spine; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Scale bar = 10 cm.
Figure 16 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 16. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Ilium (right preacetabular process). A, A1, lateral view; B, B1, medial view. Abbreviations: mr, medial ridge, m.sc, blister-like strip of muscle scarring on the lateral surface beneath the dorsal edge; srf, sacral rib facet. Hatching indicates broken bone. Scale bar = 10 cm.
Figure 5 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 5. Iguanodon (= Hypselospinus) fittoni. Holotype. NHMUK R1635. The ilium as illustrated in Lydekker (1890a: fig. 1C). A, lateral; B, ventral portion of the postacetabular process. The original illustration indicates the existence of a separate anterior portion of the preacetabular process; this latter part has not been found in the collections of the NHMUK since it was first looked for in 1974. C, teeth with the same registered number as the holotype and, although not mentioned before, presumably associated: 1. The stump of a heavily worn dentary tooth; 2, 3. Worn maxillary crowns in labial view. Abbreviations: brf, brevis fossa; ch, channel for replacement crown; p, primary ridge; prp, preacetabular process; r, subsidiary ridges. Scale bar = 10 mm.
Figure 8 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 8. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Anterior-middle caudal centrum in: A, anteri- or; B, lateral; C, posterior views. Abbreviations: cf, chevron facet; cr, caudal rib (eroded basal portion). Scale bar = 10 cm.
Figure 23 in On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)
Figure 23. Hypselospinus cf. fittoni. NHMUK R604. Middle dorsals (range: 7–10). A, (seventh) lateral; A1, ventral; A2, anterior. B, (ninth) lateral; B1, ventral; B2, anterior. Abbreviations: dia, diapophysis; k, midline keel; par, parapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.
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