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Fig. 1 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 1. Partial right postorbital of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2852), lower Maastrichtian Moreno Formation of San Benito County, California, USA, showing the autapomorphic ornamentation of its jugal process. Posterior (A) and right lateral (B) views.

Fig. 5 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 5. Appendicular elements of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2760, a subadult), lower Maastrichtian Moreno Formation of Panoche Hills, Fresno County, California, USA. A. Partial left scapula and coracoid in lateral view. B. Partially articulated forelimb elements. C. Proximal segment of right tibia in lateral view. D. Distal fragments of femora. E. Right metatarsal III in dorsal view.

Fig. 3 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 3. Right posterolateral view of the frontal of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2760, a subadult), lower Maastrichtian Moreno Formation of Panoche Hills, Fresno County, California, USA, showing the eroded remnant of the buttressing base of the posterodorsal frontal ramus.

Fig. 7 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 7. Strict consensus tree of the three most parsimonious trees derived from maximum parsimony analysis of 49 hadrosauroid species. LACM/CIT 2760 and 2852 were coded as separate OTUs and their position within Saurolophinae in highlighted in the cladogram. Numbers above the branches indicate decay indices (Bremer support), whereas those below indicate bootstrap frequencies.

Fig. 9 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 9. Comparison of the general skull and premaxillary morphology of two hadrosaurid dinosaurs Saurolophus osborni Brown, 1912, holotype AMNH 5220 (A) and Saurolophus morrisi sp. nov., holotype LACM/CIT 2852 (B), highlighting characters shared by these two taxa. Skull in right lateral view (A1, B1), right premaxilla in lateral view (A2, B2).The white inscription on the premaxilla denote the abbreviation for that bone, painted by the curatorial staff back in the early twentieth century.

Fig. 6 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 6. Appendicular elements of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2852), lower Maastrichtian Moreno Formation of San Benito County, California, USA. A. Partial right scapula in lateral view. B. Right ulna in lateral view and possible manual phalanx II−1 in dorsal view. C. Right metatarsal III in dorsal (C1) and lateral (C2) views.

Fig. 2 in A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America

Fig. 2. Partial skull roof of a hadrosaurid dinosaur Saurolophus morrisi sp. nov. (LACM/CIT 2760, a subadult), lower Maastrichtian Moreno Formation of Panoche Hills, Fresno County, California, USA. Dorsal (A) and ventral (B) views. Photographs (A1, B1) and interpretative drawings (A2, B2).

Fig. 5. A in The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus

Fig. 5. A. Strict consensus cladogram of 435 most parsimonious trees (length = 149, C.I. = 0.732, R.I. = 0.759) showing the phylogenetic position of Hadrosaurus foulkii within Hadrosauridae. Letters correspond to the location of synapomorphies supporting the clades (with numbers representing characters and character states, respectively, listed in the Appendix 1). Numbers correspond to bootstrap values after 1000 replicates. Numbers between parentheses are decay indices. B. 50% marjority rule cladogram showing H. foulkii as a member of the Hadrosaurinae. Letters correspond to the location of synapomorphies supporting the clades (with numbers representing characters and character states, respectively, listed in the Appendix 1). Numbers correspond to the majority rule frequencies for each clade. Both ACCTRAN and DELTRAN options resulted in the same distribution of synapomorphies in the estimated phylogenies. Numbers between parentheses are decay indices.

Fig. 4. Hadrosaurus foulkii Leidy, 1858 in The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus

Fig. 4. Hadrosaurus foulkii Leidy, 1858 (ANSP 10005), Haddonfield, New Jersey, U.S.A., Woodbury Formation, Campanian, Upper Cretaceous. A. Left femur in caudal view. B. Left tibia in cranial view. C. Left fibula in lateral view. D. Left metatarsal IV in dorsal (D1) and lateral (D2) views. E. Left metatarsal II in dorsal (E1) and medial (E2) views.

Fig. 7 in The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus

Fig. 7. Relationship between two ratios in the pubis of several hadrosaurid dinosaurs. P, total length of the pubis, from the acetabular edge to the cranial edge of the prepubic process; p, length of the proximal constriction of the prepubic process, from the iliac peduncle to the most proximal and highest point of the dorsal border of the pubic blade; w, minimum breadth of the proximal constriction of the prepubic process; and B, maximum breadth of the pubic blade between the end of "p" and the ventral end of a perpendicular line taken from the end of "p". The star symbol represents Hadrosaurus minor (ANSP 15202). Letters within squares represent the following taxa: B = Brachylophosaurus canadensis; C = Corythosaurus casuarius; E = Edmontosaurus annectens; E'= E. regalis; H = Hypacrosaurus altispinus; H'= H. stebingeri; K = Kritosaurus latidens; M = Maiasaura peeblesorum; P = Prosaurolophus blackfeetensis; S = Saurolophus osborni.

Fig. 2. Hadrosaurus foulkii Leidy, 1858 in The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus

Fig. 2. Hadrosaurus foulkii Leidy, 1858 (ANSP 10005), Haddonfield, New Jersey, U.S.A., Woodbury Formation, Campanian, Upper Cretaceous. A. Left radius in dorsal view. B. Left ulna in medial view . C. Left humerus in anteromedial view. D. Partial left coracoid in glenoidal (D1) and craniolateral (D2) views. E. Schematic drawing of a generalized hadrosaurid coracoid showing in white the preserved region displayed in D.

Fig. 4 in The early fossil record of dinosaurs in North America: A new neotheropod from the base of the Upper Triassic Dockum Group of Texas

Fig. 4. Partial left maxilla of an archosaur (TMM 41936-1.1), Otis Chalk area, Dockum Group, Late Triassic, found with and possibly referable to neotheropod Lepidus praecisio gen. et sp. nov., in lateral (A), ventral (B), and medial (C) views, arrows indicate anterior direction. D. A replacement tooth in labial view within the fourth alveolus in anterolateral view (D 2), close up (D ).

Fig. 3 in The early fossil record of dinosaurs in North America: A new neotheropod from the base of the Upper Triassic Dockum Group of Texas

Fig. 3. The referred left femur of neotheropod Lepidus praecisio gen. et sp. nov., Otis Chalk area, Dockum Group, Late Triassic (TMM 41936-1.3) in anterior (A) and posterior (B) views and the bone tissues of the femur (D) through the entire cortex on the anterolateral side (C) and the middle and outer cortex on the posterolateral side (D). Arrows indicate the direction of the external surface of the femur.

Fig. 5 in The early fossil record of dinosaurs in North America: A new neotheropod from the base of the Upper Triassic Dockum Group of Texas

Fig. 5. Phylogenetic relationships of early theropod dinosaurs recovered here highlighting the phylogenetic position of Lepidus praecisio gen. et sp. nov. with the holotype only (A), simplified strict consensus of six MPTs, TL = 1058, CI = 0.5311, RI = 0.8250) or with all of the hypothesized material (B), simplified strict consensus of 18 MPTs, TL = 1061, CI = 0.5383, RI = 0.8303). The original taxon list and relationships outside of Dinosauria and within Ornithischia are exactly the same as that of Nesbitt et al. (2009b).

Fig. 1 in The early fossil record of dinosaurs in North America: A new neotheropod from the base of the Upper Triassic Dockum Group of Texas

Fig. 1. Map of the type locality of Lepidus praecisio gen. et sp. nov. near Signal Peak, southeast of Big Spring, Texas. The dotted circle is the approximate area that holotype came from and its relationship to the famous Otis Chalk localities.

Fig. 2 in The early fossil record of dinosaurs in North America: A new neotheropod from the base of the Upper Triassic Dockum Group of Texas

Fig. 2. Comparisons of almost naturally articulated ankle complexes of neotheropods. A. Lepidus praecisio gen. et sp. nov., Otis Chalk area, Dockum Group, Late Triassic (TMM 41936-1.3). B. Camposaurus arizonensis Hunt, Lucas, Heckert, Sullivan, and Lockley, 1998, Placerias Quarry, Chinle Formation, Late Triassic UCMP 34498), reversed. C. Coelophysis bauri Cope, 1887, Coelophysis Quarry, Chinle Formation, Late Triassic (AMNH FARB 30615). D. Zupaysaurus rougieri Arcucci and Coria, 2003, Colorados Formation, Late Triassic (PULR 076), reversed. Left (A, C) and right (B, D) tibia, fibula, and astragalocalcaneum in anterior (A 1–D1), medial (A2–D2), posterior (A3–D3), lateral (A4–D4), and ventral (A5–D5) views, arrows indicate anterior direction.

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Fig. 1 in A New Genus of "Miacid" Carnivoran from the Earliest Eocene of Europe and North America

Fig. 1. "Miacid" carnivoran Gracilocyon solei sp. nov., from the earliest Eocene of the Tienen Formation, Dormaal, Belgium, in labial (A1–D1), occlusal (A2–D2), and lingual (A3, B3) views. A. IRSNB M 1325 (TS46), Rp4. B. IRSNB M 1326 (D133), Lm2. C. IRSNB M 1327 (DIII314RS, holotype), LM1. D. IRSNB M 1328 (DIII795RS), LM2. SEM micrographs.

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Fig. 2 in A New Genus of "Miacid" Carnivoran from the Earliest Eocene of Europe and North America

Fig. 2. "Miacid" carnivoran Gracilocyon winkleri (Gingerich, 1983) comb. nov., from the early Eocene of the Willwood formation, locality Sc−210 (Wa−2), Clark's Fork basin, Wyoming, USA, UM 75432 (holotype). Left dentary with p4–m2 in oblique labial (A), labial (B), occlusal (C), and lingual (D) views.

opencc-by-4.0Feb 2011View details →

Fig. 2 in The first giant titanosaurian sauropod from the Upper Cretaceous of North America

Fig. 2. Size comparison of Alamosaurus sanjuanensis (Gilmore, 1922) with Futalognkosaurus dukei Calvo, Porfiri, Gonzalez−Riga, and Kellner, 2007a from the Turonian, Argentina. A. A. sanjuanensis caudal vertebrae 2–4 from North Horn specimen (Gilmore 1946: pl. 8). B. A. sanjuanensis caudal vertebra (probably third or fourth) SMP VP−2104 in posterior view. C. Futalognkosaurus dukei caudal vertebra?2, MUCPv−323, in anterior view (after Calvo et al. 2007b).