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83 results for “lower jaw”
Fig. 5. A, B in The brachyopoid Hadrokkosaurus bradyi from the early Middle Triassic of Arizona, and a phylogenetic analysis of lower jaw characters in temnospondyl amphibians
Fig. 5. A, B. Comparisons between the skull of Vigilius wellesi Warren and Marsicano, 2000 (A) and the lower jaw of Hadrokkosaurus bradyi (Welles, 1947) (B) drawn to the same proportions; arrows point to changes in degree of curvature of the skull and jaw (skull modified from Warren and Marsicano 2000). C. Right lower jaw ramus of Hadrokkosaurus bradyi (Welles, 1947) in dorsal view showing lengths of segments used for calculating the degree of curvature of the ramus (see text for details). D. Close−up view of posterior part of UCMP 36199, early Anisian, northeastern Arizona.
Fig. 4. A in The brachyopoid Hadrokkosaurus bradyi from the early Middle Triassic of Arizona, and a phylogenetic analysis of lower jaw characters in temnospondyl amphibians
Fig. 4. A. Stereopair of UCMP 36205, early Anisian, northeastern Arizona; incomplete prearticular in dorsal view attributed to Hadrokkosaurus bradyi; arrows mark position and extent of lateral edge of contact area for articular. B. Stereopair of UCMP 36210, early Anisian, northeastern Arizona; broken angular in dorsal view presumably incorrectly attributed to Hadrokkosaurus bradyi; note pronounced boss−like adductor process.
Fig. 3. Eight landmarks and 89 in Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
Fig. 3. Eight landmarks and 89 semi-landmarks collected on a coleoid lower jaw (A, B). 1, the rostral tip; 2, the base of the rostrum; 3, the posterior end of the wing; 4, the posterior intersection of the outer and inner lamellae; 5, the posterior end of the inner lamella; 6, the anteroventral end of the crest; 7, the anterior intersection of the outer and inner lamellae; 8, the anteroventral end of the hood. B. A square grid showing shape differences between two individuals as deformation from B to B drawn by use of a thin-plate spline.
Fig. 6 in Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
Fig. 6. Octobrachian coleoid Nanaimoteuthis hikidai sp. nov. KMNH IvP 902,001, holotype, a lower jaw; early Campanian, Late Cretaceous, Haboro area, Hokkaido, Japan. Right lateral (A), left lateral (C), dorsal (D), and frontal (E) views, and right lateral view after removing part of outer lamella (B).
Fig. 2 in Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
Fig. 2. Diagrammatic drawing of a coleoid lower jaw. Left lateral (A) and frontal (B) views. 1, rostral length; 2, hood length; 3, crest length; 4, wing length; 5, width of outer lamella. After Clarke (1962, 1986), see Clarke and Maddock (1988) for terms and measurements.
Fig. 1 in Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
Fig. 1. Map of Haboro area, northwest Hokkaido, Japan, showing the locations of the coleoid lower jaws examined.
Fig. 8 in Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
Fig. 8. Phylogenetic relationships of fossil and modern coleoid major taxa complied from the data by Kröger et al. (2011: fig. 5) and Fuchs et al. (2013: fig. 12). Fossil records of Cretaceous decabrachian and octobrachian coleoids from the North Pacific region are given in black circles. 1, Haboroteuthis (this study); 2, Yezoteuthis (Tanabe et al. 2006); 3, Paleocirroteuthis (Tanabe et al. 2008); 4, Nanaimoteuthis (Tanabe et al. 2008; Tanabe and Hikida 2010; this study). Age after Cohen et al. (2012).
Fig. 7 in Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
Fig. 7. Decabrachian coleoid Haboroteuthis poseidon gen. et sp. nov. KMNH IvP 902,002, holotype, a lower jaw; late Santonian, Late Cretaceous, Haboro area, Hokkaido, Japan. Frontal (A), left lateral (B), dorsal (C), and right lateral (D) views.
Fig. 5 in Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
Fig. 5. Plots of the relative warp scores computed for the full set (A, B) or subset (C, D) of landmarks and semi-landmarks and the relative warps displayed as thin-plate splines. The lower and left grids show deformations from the mean shape (undeformed grid) corresponding to perturbations associated with RW1 and RW2, respectively (A, C) or RW3 and RW4, respectively (B, D).
Fig. 4 in Late Cretaceous record of large soft-bodied coleoids based on lower jaw remains from Hokkaido, Japan
Fig. 4. All coleoid lower jaws registered by the generalized least squares superimposition. A. A full set of landmarks (large symbols) and semi-landmarks (small symbols). B. A subset of landmarks and semi-landmarks put along the outline of the outer lamella.
Text-fig. 4. Lower jaw fragments. Hanakia agadjaniani: a – PCMRCh101, left p2, Petersbuch 2, occlusal view; b – BSP 1976 XXII 5490, left mnd with m2–3, Petersbuch 2, occlusal (b1) and lateral (b2) views; c – PCMRCh10, right mnd with C inf.–p2, Petersbuch 2, lingual (c1) and occlusal (c2) views; d – BSP 1976 XXII 5492, right mnd with m2, Petersbuch 2, lateral view; e – BSP 1976 XXII 5491, right mnd with p4–m1; Petersbuch 2, occlusal view; f – PCMRCh11, left mnd with m1–3, Petersbuch 2, occlusal view. in The Early Miocene Bats (Chiroptera, Mammalia) From The Karstic Sites Of Erkertshofen And Petersbuch 2 (Southern Germany)
Text-fig. 4. Lower jaw fragments. Hanakia agadjaniani: a – PCMRCh101, left p2, Petersbuch 2, occlusal view; b – BSP 1976 XXII 5490, left mnd with m2–3, Petersbuch 2, occlusal (b1) and lateral (b2) views; c – PCMRCh10, right mnd with C inf.–p2, Petersbuch 2, lingual (c1) and occlusal (c2) views; d – BSP 1976 XXII 5492, right mnd with m2, Petersbuch 2, lateral view; e – BSP 1976 XXII 5491, right mnd with p4–m1; Petersbuch 2, occlusal view; f – PCMRCh11, left mnd with m1–3, Petersbuch 2, occlusal view.
Text-fig. 6. Lower jaw fragments of different fossil and recent Plecotini, occlusal view. a, b –Plecotus aff. atavus, fragment of left mnd with p4, Gritsev: a – specimen Ch/G-096; b – specimen Ch/G-104; c – P. cf. atavus, SNSB-BSPG 1962 XIX 4201, right p4, Erkertshofen 1, occlusal view; d – P. auritus, ZMMU S-174773, fragment of right mnd with p4, recent; e – P. schoepfelii, NMA P28/0478, fragment of right mnd with p4, Petersbuch 28. in The Early Miocene Bats (Chiroptera, Mammalia) From The Karstic Sites Of Erkertshofen And Petersbuch 2 (Southern Germany)
Text-fig. 6. Lower jaw fragments of different fossil and recent Plecotini, occlusal view. a, b –Plecotus aff. atavus, fragment of left mnd with p4, Gritsev: a – specimen Ch/G-096; b – specimen Ch/G-104; c – P. cf. atavus, SNSB-BSPG 1962 XIX 4201, right p4, Erkertshofen 1, occlusal view; d – P. auritus, ZMMU S-174773, fragment of right mnd with p4, recent; e – P. schoepfelii, NMA P28/0478, fragment of right mnd with p4, Petersbuch 28.
Fig. 5 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar
Fig. 5. Partial dentary of possible bothremydid, UA 8708. Left ramus restored by reversing right ramus.
Fig. 4 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar
Fig. 4. Photographs of the partial dentary of a possible bothremydid, UA 8708, in: A, dorsal view; B, right lateral view; C, anterior view; and D, posterior view. Scale bar equals 3 cms.
Fig. 1 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar
Fig. 1. Photographs of the lower jaw of cf. Erymnochelys, FMNH PR 2231. A, Dorsal view; B, ventral view; C, anterior view; D, right lateral view; E, medial view of right jaw; and F, medial view of left jaw. Scale bar equals 1 cm.
Fig. 3 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar
Fig. 3. Photographs of the lower jaw of the extant Malagasy turtle Erymnochelys madagascariensis (Bavarian State Natural History Collection, Munich, no. 843/20, Mahajanga, Madagascar, collector Prof. Voeltzkow 1907). A, Dorsal view (see Gaffney and Zangerl, 1968: fig. 22C and E for comparable views of Bothremys); B, ventral view (see Gaffney and Zangerl, 1968: fig. 22A for comparable view of Bothremys); C, anterior view; D, right lateral view; E, medial view of right jaw; and F, medial view of left jaw. Scale bar equals 1 cm.
Fig. 2 in Side-Necked Turtle Lower Jaws (Podocnemididae, Bothremydidae) from the Late Cretaceous Maevarano Formation of Madagascar
Fig. 2. Drawings of the lower jaw of cf. Erymnochelys, FMNH PR 2231. A, Dorsal view; B, ventral view; C, anterior view; D, right lateral view; and E, medial view of right jaw. Scale bar equals 1 cm.
FIGURE 5 in Lower Jaw of Spathites (Ammonoidea: Acanthoceratoidea) from the Upper Cretaceous (Turonian) of New Mexico
FIGURE 5. Three-dimensional reconstruction of the lower jaw of Spathites puercoensis (NMMNH P-79962) showing A, ventral and B, lateral views.
FIGURE 4 in Lower Jaw of Spathites (Ammonoidea: Acanthoceratoidea) from the Upper Cretaceous (Turonian) of New Mexico
FIGURE 4. Cross section of a piece of the aptychus from the anterior edge of the left plate, with the outer (ventral) surface on top. A. The aptychus is 0.19 mm thick and consists of a very thin outer layer 7.7 µm thick and a thicker inner (dorsal) layer—the rest of the aptychus. B. Close-up of the bottom of the inner layer showing oblique laminations. C. Close-up of the middle of the inner layer showing massive microstructure. D. Close-up of the outer layer showing massive microstructure.
FIGURE 2. A in Lower Jaw of Spathites (Ammonoidea: Acanthoceratoidea) from the Upper Cretaceous (Turonian) of New Mexico
FIGURE 2. A. Overview of New Mexico Museum of Natural History P-79962 showing the specimen of Spathites puercoensis (upper arrow) and the associated jaw (lower arrow). B. Close-up of the umbilical nodes (arrows) surrounding the umbilicus, which is a characteristic of this species. C. Whorl cross section at the base of the body chamber with the last septum of the phragmocone on top. D. Fragment of the apertural margin (arrow) of another specimen of S. puercoensis next to the aptychus. E. Close-up of the inflated apertural margin (arrow) and part of the shell covered with growth lines. Scale bar = 1 cm.
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