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193 results for “Thalattosuchia”
FIGURE 6 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 6. Dakosaurus sp., DMA-JP-2009/001, integumentary details of various regions of the body, all under visible light. A: Patch on proximal tail, with widely spaced striation right-angled to vertebral column. Width of frame equals approximately 6.7 cm. B: Crisscross folding in neck region. Width of frame equals approximately 3.7 cm. C: Patch on proximal tail with rare occurrence of longitudinal folding, right-angled to transversal fiber system (section of the middle left of A, under different lighting). Width of frame equals approximately 5.3 cm.
FIGURE 4 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 4. Metriorhynchidae indet., LF 3474, distal half of tail, photographed under UV A, B, and C, with orange filter and linear polarizing filter. Skin preservation mostly reacting as yellowish areas. Note the pronounced fluke. The edge of the base of the upper lobe is marked by a white line, as mapped from the below detail under visible light to demonstrate soft tissue distribution (arrow pointing to leading edge). Scale bar equals 20 cm; for inset in mm.
FIGURE 23. Rhacheosaurus gracilis, NHMUK R.3948. A in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 23. Rhacheosaurus gracilis, NHMUK R.3948. A: Skeleton with soft tissue outlines. B: Detail of tail fluke. The outline of the upper lobe is blurred and not clearly indicated by darker color. Courtesy of Yanina Herrera, used with permission. Scale bar in cm.
FIGURE 11 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 11. Metriorhynchidae indet., NKMB-P-Watt06/508, specimen under UV, with soft tissue preservation surrounding most of the skeleton. A separated piece containing the distal tail is not depicted here, since no soft tissue is exposed. Scale bar equals 20 cm.
FIGURE 18 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 18. Cricosaurus albersdoerferi, BMMS-BK 1-2, details of skin preservation. A: Anterior part of dorsal edge of neck patch (Figure 16). From the center to the lower right longitudinal muscle fascia are exposed. In the upper part, sets of folds and possibly fibers overlap. Width of frame equals approximately 3.1 cm. B: Indistinct fragmentation of skin patch in posterior trunk, interpreted as potential taphonomic shrinking. Width of frame equals approximately 3.5 cm. C: Dorsal edge of neck patch (Figure 16) with curved striation (arrows indicate acute rhomboidal directions). Width of frame equals approximately 3.7 cm. D: Position little more posterior as in C. Additional to the dominant orientation of skin surface striation, another, acute-angled set crosses and is visible under a certain angle of light. Width of frame equals approximately 3.2 cm. E: Skin details associated to femur (lower right), with oblique striation and rhomboidal, superficially scale-like compaction pattern (lower left, indicated by arrows). Width of frame equals approximately 4.2 cm. F: Anterior hemapophysis with associated skin folds that radially spread from the bone terminus as an effect of load during compaction. A circular skin irregularity is seen above the bone (arrow). Width of frame equals approximately 5.4 cm.
FIGURE 17 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 17. Cricosaurus albersdoerferi, BMMS-BK 1-2, soft tissue patch on the ventral chest, posterior to pectoral girdle. On the middle left (below terminus of rib), horizontal striation reflects musculature. The covering layer exhibits soft skin folds. Circular irregularities (some marked by arrows) are interpreted in the text. Width of frame equals approximately 6.5 cm.
FIGURE 22 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 22. Cf. Rhacheosaurus gracilis, LF 2426, photographed under UV A, B, and C, with orange filter and linear polarizing filter. Yellowish areas represent skin preservation as well as bone. Cube length 1 cm; total width for frame equaling 57.8 cm.
FIGURE 7 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 7. Dakosaurus sp., DMA-JP-2009/001, visible light photograph of dorsal region of anterior middle tail, with numerous dark irregularities on the skin. Width of frame equals approximately 12.1 cm.
FIGURE 21 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 21. Cricosaurus bambergensis, NKMB-P-Watt14/274, proximal tail portion, column surrounded by skin patches with folds and fibers. The arrow points to a patch tentatively identified as musculature. Width of frame equals approximately 12 cm.
FIGURE 2 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 2. Metriorhynchidae indet., LF 3474, patch of trunk integument with displaced vertebrae and rib (uncertain position on body), same section photographed under visible light (above) and UV (below; UV A, B, and C, with orange filter and linear polarizing filter). Skin traits comprise soft-looking folds (left), sharp striae identified as fibers (right portion), and irregular skin scars (arrows pointing at three circular irregularities in the center, and curl-like structure in the right half; see discussion for interpretation). Scale bar for both parts equals 10 cm.
FIGURE 1 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 1. Stratigraphic positions and locations of different Upper Jurassic plattenkalk localities of the Franconian and Swabian Alb. 1 Nusplingen, 2 Daiting, 3 Solnhofen, 4 Mörnsheim, 5 Eichstätt, 6 Schamhaupten, 7 Zandt, 8 Brunn. Stratigraphic positions after Schweigert (2007).
FIGURE 13 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 13. Metriorhynchidae indet., NKMB-P-Watt06/508, feet of both sides under UV. The caudal soft tissue ends slightly ventral to the hemapophyses. Minor patches of yellowish skin indication are uncertainly belonging to the webbing or metatarsal area of one of the feet (arrow). Width of frame equals approximately 35.5 cm.
FIGURE 28 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)
FIGURE 28. Life reconstruction of a Dakosaurus-like metriorhynchid, illustrating the skin surface, fluke outline, and potential epizoic parasites, according to new data.
FIGURE 7 in A new species of Cricosaurus (Thalattosuchia, Metriorhynchidae) based upon a remarkably well-preserved skeleton from the Upper Jurassic of Germany
FIGURE 7. Cricosaurus albersdoerferi sp. nov. (BMMS-BK 1-2) holotype, late Kimmeridgian of Painten (Southern Germany). Limbs and girdle elements. (A) front limbs and pectoral girdle, (B) hind limbs and pelvis. Abbreviations: ast, astragalus; cal, calcaneum; co, coracoid; dt, distal tarsal; fe, femur; fi, fibula; h, humerus; il, ilium; mc, metacarpal; mt, metatarsal; ph, phalanx; pub, pubis; r, radius; re, radiale; sc, scapula; ti, tibia; u, ulna. Scale bars equal 50 mm.
FIGURE 6 in A new species of Cricosaurus (Thalattosuchia, Metriorhynchidae) based upon a remarkably well-preserved skeleton from the Upper Jurassic of Germany
FIGURE 6. Cricosaurus albersdoerferi sp. nov. (BMMS-BK 1-2) holotype, late Kimmeridgian of Painten (Southern Germany). Caudal vertebrae in lateral view. (A) proximal caudals, (B) distal caudal series and tail bend. Abbreviations: ap, anterior process; ffc, first flexural caudal vertebra; hp, hemapophysis; hs, hemapophyseal lobe; ns, neural spine. Scale bars equal 50 mm.
FIGURE 4 in A new species of Cricosaurus (Thalattosuchia, Metriorhynchidae) based upon a remarkably well-preserved skeleton from the Upper Jurassic of Germany
FIGURE 4. Cricosaurus albersdoerferi sp. nov. (BMMSBK 1-2) holotype, late Kimmeridgian of Painten (Southern Germany). Close-ups of the dentition (A) and scleral ring (B). Scale bars equal 10 mm.
FIGURE 3 in A new species of Cricosaurus (Thalattosuchia, Metriorhynchidae) based upon a remarkably well-preserved skeleton from the Upper Jurassic of Germany
FIGURE 3. Cricosaurus albersdoerferi sp. nov. (BMMS-BK 1-2) holotype, late Kimmeridgian of Painten (Southern Germany). Skull in lateral view with illustration of the preserved elements. Abbreviations: an, angular; art, articular; cor, coronoid; d, dentary; en, external naris; fr, frontal; hy, hyoid; jug, jugal; lac, lacrimal; mx, maxilla; ns, nasal; pmx, premaxilla; po, postorbital; pof, preorbital fenestra; prf, prefrontal;?qu, possible quadrate; sa, surangular; sdg, surangulodentary groove; sp, splenial;?sq, squamosal or squamosal-postorbital fragment. Scale bar equals 50 mm.
FIGURE 1 in A new species of Cricosaurus (Thalattosuchia, Metriorhynchidae) based upon a remarkably well-preserved skeleton from the Upper Jurassic of Germany
FIGURE 1. Cricosaurus albersdoerferi sp. nov. (BMMS-BK 1-2) holotype, late Kimmeridgian of Painten (Southern Germany). Skeleton in lateral view. Scale bar equals 200 mm.
Figure 8 in What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany
Figure 8. Metriorhynchid taxonomy in historical perspective: main changes in taxon names from their original description (left column) to this paper (right column), passing through definitions by Fraas (1902) and Steel (1973). The cladogram on the right is a reduced version of the strict consensus tree in Figure 7. The grey areas indicate monophyletic genera in this taxonomic arrangement.
Figure 5. Comparative cranial morphology for derived metriorhynchid species. A in What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany
Figure 5. Comparative cranial morphology for derived metriorhynchid species. A, Dakosaurus maximus neotype, SMNS 8203. B, Enaliosuchus schroederi holotype, MMGLV. C, Geosaurus araucanensis holotype, MLP 72-IV-7-1. The relative position of the orbit is indicated for Dakosaurus. Scale bars: 20 mm.
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