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47 results for “Megalosaurus”
Fig. 6 in Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal
Fig. 6. Geological and stratigraphical context of fossil sites in the Setúbal sub-basin. A. Map of the Lusitanian Basin with the main structural elements and the different sub-basins (sensu Fürsich et al. 2021). B. Geological map of the Sesimbra to Cabo Espichel region with localities yielding fossil remains studied in this work (modified from Manuppella et al. 1999b). C. Simplified stratigraphy of the Lower Cretaceous sequences in the Setúbal sub-basin based on Manuppella et al. (1999b). The stratigraphic position of the Papo Seco Formation from which the studied fossils were collected is marked in green. Abbreviations: Chron., Chronostratigraphy; Fm., Formation; mb., member; l., lower; m., middle; sb., sub-basin; u., upper.
Fig. 2 in Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal
Fig. 2. Geological and stratigraphical context of fossil sites in the Consolação and Bombarral sub-basins, Portugal. A. Geological map of coastal region of Lourinhã and Peniche with localities yielding fossil remains studied in this work (modified from Camarate França et al. 1960; Manuppella et al. 1999a). B. Map of the Lusitanian Basin with the main structural elements and the different sub-basins (sensu Fürsich et al. 2021). C. Simplified stratigraphy of the Upper Jurassic and Lower Cretaceous sequences in the Torres Vedras and Lourinhã costal region and Consolação-S.Martinho do Porto coastal region based on Hill (1988), Manuppella et al. (1999a) and Azerêdo et al. (2010). Abbreviations: Assen., Assenta; Chron., Chronostratigraphy; Fm., Formation; mb., member; l., lower; m., middle; Oxfor., Oxfordian; sb., sub-basin; u., upper.
Fig. 5 in Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal
Fig. 5. Geological and stratigraphical context of fossil sites in the Mamede sub-basin. A. Map of the Lusitanian Basin with the main structural elements and the different sub-basins (sensu Fürsich et al. 2021). B. Geological map map of the region of Pombal and Leiria with localities yielding fossil remains studied in this work (modified from Teixeira et al. 1968; Manuppella et al. 1978). C. Simplified stratigraphy of the Upper Jurassic sequences in the Mamede sub-basin based on Kullberg et al. (2013) and Fürsich et al. (2021). Abbreviations: Berrias., Berriasian; Chron., Chronostratigraphy; Fm., Formation; mb., member; l., lower; m., middle; Oxf., Oxfordian; sb., sub-basin; u., upper.
Fig. 8 in Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal
Fig. 8. Cervical vertebrae attributed to a thalattosuchian crocodyliforms from the Kimmeridgian Alcobaça Formation, Fervença (Alcobaça region, Portugal). A. MG 4829a. B. MG 4829b. Right lateral (A1, B1), left lateral (A2, B2), anterior (A3, B3), dorsal (anterior to the right, A4, B4), ventral (anterior to the left, A5, B5), and posterior (A6, B6) views.
Fig. 1 in Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal
Fig. 1. Geological map (adapted from Oliveira et al. 1992) showing the Mesozoic levels and the main structures that delimit the different sectors (sensu Ribeiro et al. 1996 and Kullberg et al. 2006) and sub-basins (sensu Fürsich et al. 2021) of the Lusitanian Basin, Portugal.
FIGURE 1 in A redescription of ' Megalosaurus ' hesperis (Dinosauria, Theropoda) from the Inferior Oolite (Bajocian, Middle Jurassic) of Dorset, United Kingdom
FIGURE 1. Tooth-bearing bones of Duriavenator hesperis (NHM R332) in lateral (A, J, F–G, M, P–Q), anterior (B, K), medial (C, H, L, O, T–U), posterior (D–E), and dorsal (I, N, R–S) views. A–D, left premaxilla; E–I, right premaxilla; J– L, right maxilla with magnified (x2) sections showing the anteroventral region of the antorbital fossa (J) and the pneumatic region on the dorsal surface of the jugal process (L); M–O, left dentary; P–U, right dentary. In line drawings (G, Q, S, U) light grey tone indicates tooth, mid grey tone indicates restored surface, and dark grey tone indicates broken bone surface. Abbreviations: 3rd, third dentary alveolus; amp, anteromedial process; idp, interdental plate; for, foramen; mef, Meckelian fossa; meg, Meckelian groove; mfr, Meckelian foramen; mxf, maxillary fenestra (imperforate); pal, palatal process; pdg, paradental groove; pnu, pneumatic fossa; snp, subnarial process. Scale bar equals 100 mm.
FIGURE 2 in A redescription of ' Megalosaurus ' hesperis (Dinosauria, Theropoda) from the Inferior Oolite (Bajocian, Middle Jurassic) of Dorset, United Kingdom
FIGURE 2. Cranial bones of Duriavenator hesperis (NHM R332) showing parts of NHM R332 during (A) and prior to (O) preparation reported by Waldman (1976), and after preparation by S. Moore-Fay in 2008 (I–J), and fragmentary elements in unknown (B–E), left lateral (F), ventral (G), dorsal (H), lateral (K–L), medial (M–N) views. A, I–J, block originally containing right maxilla, posterior portion of right premaxilla and unidentified bone fragment (B–E) during preparation by Waldman (1974); F–H, posterior portion of vomer; K–N, right surangular; O, NHM R334, cast of block containing right dentary, fragmentary right surangular, and anterior portion of right premaxilla prior to preparation. In line drawings (D–E, L, N) dark grey shading indicates broken bone. Abbreviations: cor, articular facet for the coronoid; frag, unidentified bone fragment; imp, tooth impression. Scale bars equal 50 mm (B–H, K–N) and 100 mm (A, I–J, O).
Figure 18 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 18. Metatarsals of Megalosaurus bucklandii from the Taynton Limestone Formation of Stonesfield, Oxfordshire (A–K, R–U) and the Chipping Norton Limestone Formation of Oakham Quarry (L–Q) in medial (A, L, R), dorsal (B, E, F, K, M, S), lateral (C, J, N, T), ventral (D, O, U), proximal (G, P) and distal (H, I, Q) views. A–D, G, H, left metatarsal II, GSM 57809; E, I, left metatarsal II, OUMNH J.13573; F, left metatarsal II, OUMNH J.13572; J, K, right metatarsal III, OUMNH J.13569; L–Q, left metatarsal III, BMNH R9665; R–U, left metatarsal IV, BMNH 40128a. In line drawings (right image in A–D, L, M, R, U), light grey tone indicates restored bone surface and dark grey tone indicates broken bone surface. clp, collateral ligament pit; II, articular surface for second metatarsal; III, articular surface for third metatarsal. Scale bar, 100 mm; G–I, P, Q magnified (¥1.5).
Figure 16 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 16. Right femur (BMNH 31806) of Megalosaurus bucklandii from the Taynton Limestone Formation of Stonesfield, Oxfordshire in anterior (A, B), medial (C, D), lateral (E, F), posterior (G, H) and distal (I, J) views. I, J, magnified (¥2). In line drawings (B, D, F, H, J), light grey tone indicates reconstructed bone surface and dark grey tone indicates broken bone surface. act, accessory trochanter; ctf, crista tibiofibularis; exg, extensor groove; ft, fourth trochanter; gt, greater trochanter; lco, lateral condyle; lt, lesser trochanter; mco, medial condyle; mdc, medial distal crest; pof, posterior flange of caput. Scale bar, 300 mm.
Figure 14 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 14. Left ilium (BMNH R1100) from the Taynton Limestone Formation of Stonesfield, Oxfordshire in lateral (A, B) and ventral (C) views: A, with magnification (¥2) of the median ridge; D, magnification (¥2) of the pubic peduncle in articular view; E, magnification (¥2) of the ischial peduncle in articular view. Light grey tone indicates reconstructed bone surface in the line drawing (B). brf, brevis fossa; isp, ischial peduncle; meb, medial blade; pob, posterior blade; pop, posterior process; pup, pubic peduncle; sac, supracetabular crest. Scale bar, 300 mm.
Figure 13 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 13. Left ulna (BMNH 36585) from the Taynton Limestone Formation of Stonesfield, Oxfordshire in lateral (A, B), anterior (C), medial (D, E), posterior (F), proximal (G) and distal (H) views. In line drawings (B, E), light grey tone indicates reconstructed bone surface and dark grey tone indicates broken bone surface. frac, fracture line; ole, olecranon process; path, pathological swelling. Scale bar, 100 mm.
Figure 17 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 17. Left tibia (BMNH 31809) of Megalosaurus bucklandii from the Taynton Limestone Formation of Stonesfield, Oxfordshire in anterior (A, B), lateral (C, D), posterior (E), medial (F), proximal (G) and distal (H) views. G, H, magnified (¥1.5). In line drawings (B, D), light grey tone indicates reconstructed bone surface and dark grey tone indicates broken bone surface. cnc, cnemial crest; ffl, fibular flange; for, foramen; ict, incisura tibialis; lco, lateral condyle; mco, medial condyle; sab, supracetabular buttress. Scale bar, 300 mm.
Figure 12 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 12. Humeri of Megalosaurus bucklandii from the Taynton Limestone Formation of Stonesfield, Oxfordshire (A–L, N, O) and the Chipping Norton Limestone Formation of New Park Quarry, Gloucestershire (M) in anterior (A, B, K–O), lateral (C, D), posterior (E, F), medial (G, H), proximal (I) and distal (J) views. A–J, left humerus, OUMNH J.13575; K, L, right humerus, OUMNH J.29869 (only questionably from Stonesfield); M, left humerus, SDM 1944.18; N, O, left humerus, OUMNH J.29761. In line drawings (B, D, F, H, L, O), light grey tone indicates reconstructed bone surface and dark grey tone indicates broken bone surface. dpc, deltopectoral crest; ext, external tuberosity; for, foramen; int, internal tuberosity; rac, radial condyle. Scale bar, 200 mm.
Figure 11 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 11. Pectoral girdle elements of Megalosaurus bucklandii from the Taynton Limestone Formation of Stonesfield (A–E, G, H) and Sharp's Hill Formation of Workhouse Quarry, Chipping Norton (F), both in Oxfordshire, in lateral (A, B, F–H), ventral (C, D) and medial (E) views. A–E, right scapulocoracoid, OUMNH J.13574; F, right scapula, OUMNH J.29800; G, H, left scapulocoracoid, BMNH R1099. In line drawings (B, D, H), light grey tone indicates restored bone surface and dark grey tone indicates broken bone surface. acr, acromion process; cf, coracoid foramen; dfl, dorsal flange; gl, glenoid. Scale bars, 300 mm.
Figure 10 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 10. Ribs of Megalosaurus bucklandii from the Taynton Limestone Formation of Stonesfield, Oxfordshire in anterior (A, B, D, F), posterior (C) and lateral (E) views. A, left cervical rib, OUMNH J.13585; B, left anterior–middle dorsal rib, OUMNH J.13582; C, left middle dorsal rib, OUMNH J.13583; D, left posterior dorsal rib, OUMNH J.13580; E, F, left middle dorsal rib, BMNH 37303. pfl, posterior flange. Scale bars, 100 mm.
Figure 8 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 8. Proximal caudal vertebrae of Megalosaurus bucklandii from the Chipping Norton Limestone Formation of New Park Quarry, Gloucestershire (A–I) and the Taynton Limestone Formation of Stonesfield, Oxfordshire (J–L) in left lateral (A, B, J), anterior (C, K), right lateral (D, H, I), posterior (E), ventral (F) and dorsal (G, L) views. A–G, BMNH R9672; H, I, BMNH R9677; J–L, OUMNH J.13579. In line drawings (B, I), dark grey tone indicates broken bone surface and cross-hatching indicates matrix. for, foramen; ns, neural spine; poz, postzygapophysis; trp, transverse process. Scale bar, 100 mm.
Figure 5 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 5. Posterior fragment of a right mandible (OUMNH J.29813) from the Taynton Limestone Formation of Stonesfield, Oxfordshire in lateral (A, B), dorsal (C, F) and medial (D, E) views. Dark grey tone indicates broken bone surface in line drawings (B, E, F). ANG, angular; AR, articular; for, foramen; PRA, prearticular; SA, surangular. Scale bar, 100 mm.
Figure 6 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 6. Presacral vertebrae of Megalosaurus from the Chipping Norton Limestone Formation of New Park Quarry, Gloucestershire (A–J) and the Taynton Limestone Formation of Stonesfield, Oxfordshire (K–R) in right lateral (A, B, G, H, P), anterior (C, F, N, O), posterior (D, E, Q, R), ventral (I, J, M) and left lateral (K, L) views. A–E, anterior cervical vertebra, BMNH R9674; F–J, 'pectoral' vertebra (sensu Welles, 1984), BMNH R9678; K–R, posterior dorsal vertebra, OUMNH J.13577. In line drawings (B, E, H, J, L, O, R), light grey tone indicates restored bone surface, dark grey tone indicates broken bone surface and crossed hatching indicates matrix. cam, camera; epi, epipophysis; for, foramen; hys, hyposphene; nec, neural canal; ns, neural spine; pcdl, posterior centrodiapophyseal lamina; poz, postzygapophysis; prez, prezygapophysis; trp, transverse process; Scale bar, 100 mm.
Figure 7 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 7. Sacra of Megalosaurus bucklandii from the Taynton Limestone Formation of Stonesfield, Oxfordshire (A–N) and the Chipping Norton Limestone Formation of New Park Quarry (O–Q) in left lateral (A, B, K–M, O), posterior (C, D), right lateral (E, F, P), anterior (G, H) and ventral (I, J, N, Q) views. A–I, OUMNH J.13576; J–L, BMNH 28957/R1098; M, N, BMNH R700; O–Q, SDM 1944.4. In line drawings (B, D, F, H, L), light grey tone indicates restored surface and dark grey tone indicates broken bone surface. fen, fenestra between neural arches; for, foramen; ivf, intervertebral foramen; nc, neural canal; ns, neural spine; poz, postzygapophysis; prez, prezygapophysis; sr1–5, first to fifth sacral rib articulations; trp, transverse process; 1–5, first to fifth sacral centra. Scale bar, 200 mm.
Figure 4 in A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods
Figure 4. Left dentaries of Megalosaurus bucklandii from the Chipping Norton Limestone Formation of an unknown locality in Gloucestershire (probably New Park Quarry) in medial (A, D), lateral (B, E) and dorsal (C) views. A–C, BMNH 8305; D, E, BMNH R8304. idp, interdental plate; meg, Meckelian groove; 2nd, tooth in second alveolus. Scale bar, 100 mm.
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