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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.

Figure 3 in What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany

Figure 3. The second specimen of Geosaurus giganteus, NHM R.1230, preserving remnants of the skull in dorsal (top left) and ventral (top right) views, as well as postcranial elements (bottom). The white arrows indicate the impressions of nonpreserved vertebrae on the matrix. Scale bar: 20 mm.

Figure 1 in What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany

Figure 1. Lateral views and line drawings of the type of Geosaurus giganteus (Von Sömmerring, 1816), showing the right (top) and the left (bottom) sides of the specimen (NHM R.1229). Line drawings show the interpretation of sutures and the main features of the specimen; the grey shading represents fossae. Scale bars: 20 mm.

Figure 4 in What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany

Figure 4. Lateral view of the third, and forgotten, specimen of Geosaurus giganteus: NHM 37020. A, lateral view of the entire cranium. B, close-up of the tooth row, with the arrows highlighting the enlarged dentary tooth and the notch for its reception, whereas the box shows the occlusion of the maxillary/dentary teeth. Scale bars = 20 mm.

Figure 7 in What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany

Figure 7. Strict consensus of 4104 most parsimonious cladograms, with bootstrap support for each node (tree length = 578; consistency index, CI = 0.436; retention index, RI = 0.861; rescaled consistency index, RC = 0.376). On the left, the position of Thalattosuchia relative to other Crocodylomorpha is shown, whereas, on the right the Metriorhynchoidea is separated to aid visualization. Arrows denote stem-based clades, whereas squares indicate node-based clades.

Figure 2 in What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany

Figure 2. Dental facets and their occurrence in Geosaurus giganteus. The close-up on the dentition of NHM R.1229 (left), and the corresponding line drawing (centre), shows the gross morphology of the teeth, with their distinctly triangular shape. On the right, a cross section of one tooth is shown, with the three labial facets indicated by arrow heads. On the lower right: an occlusal view of an isolated tooth of Geosaurus (SMNS 81834) displaying the facets and their limits, at the labial face of the crown. Scale bars: 20 mm.

FIGURE 12 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 12. Metriorhynchidae indet., NKMB-P-Watt06/ 508, dorsal region of middle tail, with longitudinal and transversal skin folding, along with a nest of irregularities (grey knobs). Width of frame equals approximately 7.6 cm.

FIGURE 8 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 8. Dakosaurus sp., DMA-JP-2009/001, anatomically proximal continuation of Figure 7. On the lower left and right, the dark patches (white arrows) expose a skin layer that is overlain by the bright matter in most of the preserved skin. Width of frame equals approximately 8.2 cm.

FIGURE 3 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 3. Metriorhynchidae indet., LF 3474, scattered patches of skin preservation in visible light, from partially disarticulated trunk. A: Fold systems with dominant and additional orientations. B: Sharp lines forming a net of cracks or distinctly flexed folds; displaced portion with unknown body orientation. C: Displaced patch as in A in a wider section, with at least one circular irregularity in the lower part (arrow). D: Soft folding of skin surface, exposed near to the knee. E: Potential bundles of muscle fibers (horizontal), with oblique crossing fold traces on the right (chest, anterior to pectoral girdle). F: Softly folded integument associated to the ischium (upper middle). All with mm scale.

FIGURE 14 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 14. Metriorhynchidae indet., NKMB-P-Watt06/508, middle tail with soft tissue preservation. A: Visible light image with structural details of the skin, mostly folding, and knob-like irregularities (some indicated by arrows). Width of frame equals approximately 30.6 cm. B: UV image with darker bluish signals probably reflecting varnish. Width of frame equals approximately 33.9 cm.

FIGURE 10 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 10. Dakosaurus sp., DMA-JP-2009/001, close-ups of skin irregularities, courtesy of Yanina Herrera, used with permission. A: Large oval scar, see also Figures 8 and 9. Width of frame equals approximately 4.5 cm. B: Circular scar representing the most abundant type and size of skin irregularities in this specimen, adjacent to blurred, open irregularity, see also Figures 6A, 7, and upper edge of Figure 9. Width of frame equals approximately 4.5 cm. C: Circular scar retaining the texture of uninterrupted skin, see also Figure 7 and 9. Width of frame equals approximately 5.5 cm.

FIGURE 5 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 5. Dakosaurus sp., DMA-JP-2009/001, skin preservation on dorsal margin of trunk. A: Shoulder area, skin with transversal fibers and associated folding, visible light. Width of frame equals approximately 18.2 cm. B: Lumbar region, similar structures as in A, under UV. Width of frame equals approximately 20.5 cm.

FIGURE 25. Teleosauroid SMNS 10985 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 25. Teleosauroid SMNS 10985 (formerly assigned to Steneosaurus), right hind leg with soft tissue preservation. Courtesy of Erin Maxwell, used with permission. Scale bar equals 10 cm.

FIGURE 26. Teleosauroid SMNS 10985 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 26. Teleosauroid SMNS 10985 (formerly assigned to Steneosaurus), detail of integument on rear side of hind leg, illustrating flexed joints and square to rhomboidal shaped scutes. Courtesy of Erin Maxwell, used with permission. Width of frame equals 16 cm.

FIGURE 24 in The integument of pelagic crocodylomorphs (Thalattosuchia: Metriorhynchidae)

FIGURE 24. Schematic drawings of metriorhynchid tail flukes, distal caudal columns and integumentary contours. A: Rhacheosaurus NHMUK R.3948, historical reconstruction (Andrews, 1913, figure A). B: Same specimen, outline from photograph (Figure 23B), with potential outlines of the upper lobe evaluated from textures on the fossil in visible light. C: Metriorhynchidae indet., LF 3474 (new specimen, Figure 4), with possible outlines for the upper lobe inferred from preserved edges. D: Proposed outline in ontogenetic stages with less pronounced tail bending (generalized sketch comparable to unpublished specimen, see text for further information). All drawn to similar size.