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706 results for “Late Jurassic”
Figure 9 in The petrosal and inner ear of the Late Jurassic cladotherian mammal Dryolestes leiriensis and implications for ear evolution in therian mammals
Figure 9. Dryolestes leiriensis left petrosal mars mastoidea (Gui Mam 2/81). A, B, posterior view of the pars mastoidea of petrosal (stereophotographs). C, posterior view of petrosal (camera lucida drawing). D, structure identification. Abbreviations: ac, aqueductus cochleae canal opening (intramural in jugular notch); boc, basioccipital contact (and suture); eoc, exoccipital contact surface; ips, inferior petrosal sinus – posterior opening of the canal (on tympanic surface); me, mastoid exposure of pars canalicularis of petrosal (on the occipital aspect of the skull); nc, nuchal (lambdoidal) component of pars canalicularis of petrosal; oev, occipital emissary vascular foramen; pp, (posterior) paroccipital process of petrosal; ptc, post-temporal canal (for the arteria and vena diploëtica magna); soc, supraoccipital contact (and suture).
Figure 2 in The petrosal and inner ear of the Late Jurassic cladotherian mammal Dryolestes leiriensis and implications for ear evolution in therian mammals
Figure 2. Petrosal and inner ear of Dryolestes leiriensis (composite reconstruction). A, composite restoration of the left petrosal: the preserved part of the petrosal is stippled; the lateral trough and its related structures (shaded blue) are broken and missing; their reconstruction is conjectural, and restored on the basis of the petrosals of other therian mammals. B, conjectural restoration of the petrosal. C, outline of the reconstructed petrosal and the approximate position of the inner ear (lateral trough and its related structures reconstructed). D, virtual endocast of inner ear bony labyrinth (reconstruction of Gui Mam 2/81). Abbreviations: * indicates a slightly distorted area of promontorium surface.
Figure 13. Dryolestes leiriensis left inner ear virtual endocast. A, lateral view. B in The petrosal and inner ear of the Late Jurassic cladotherian mammal Dryolestes leiriensis and implications for ear evolution in therian mammals
Figure 13. Dryolestes leiriensis left inner ear virtual endocast. A, lateral view. B, dorsomedial view. Abbreviations: ac, aqueductus cochleae; asc, anterior semicircular canal; asca, anterior semicircular canal ampulla; av, aqueductus vestibuli; bpl, base for primary bony lamina of basilar membrane; bsl, bony base of the secondary lamina of basilar membrane; cc, crus commune; cg, cochlear ganglion (blue, reconstructed); cn(viii), reconstructed cochlear nerve (cranial nerve VIII, yellow); co, cochlear canal basal portion [the first half-turn (180° arc) from the sacculo-utricular junction]; co-a, cochlear canal apical portion [the apical quarter-turn (180-270° arc) from the sacculo-utricular junction]; dus, division between utricle and saccule; fc, fenestra cochleae; fcn, foramina for cochlear nerve fibres (cranial nerve VIII) (= tractus spiralis foraminosus, or cribriform plate); fut, foramen for utricular nerve VIII (reconstructed, white); fv, fenestra vestibuli; iam, internal acoustic meatus; ivc, inflection point between utricle and saccule; lsc, lateral semicircular canal; lsca, lateral semicircular canal ampulla; p-fcn, the posterior-most entry foramen of cochlear nerve fibres; psc, posterior semicircular canal; psca, posterior semicircular canal ampulla; sa, saccule; scc, secondary crus commune; ut, utricle.
Figure 5 in Redescription and phylogenetic relationships of Meridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay
Figure 5. Paleogeographic map of the Late Jurassic (modified from Paleogeographic Globes available at http:// jan.ucc.nau.edu/~rcb7/globehighres.html) indicating the pholidosaurid localities and dispersion routes. See text for explanation. Legend: 1, Pholidosaurus; 2, Terminonaris; 3, Sarcosuchus; 4, Oceanosuchus; 5, Elosuchus; 6, Meridiosaurus.
Figure 4 in Redescription and phylogenetic relationships of Meridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay
Figure 4. Temporally calibrated cladogram showing the phylogenetic relationships of Pholidosauridae. The ghost lineages are in grey. 1, temporal range based on Sarcosuchus hartii. 2, temporal range based on two putative pholidosaurids, Anglosuchus and Crocodilaemus. First appearances based on: Dyrosauridae, Buffetaut & Lauverjat (1978) and Buffetaut, Bussert & Brinkmann (1990); Thalattosuchia, Buffetaut et al. (1981); other neosuchians, Tykoski et al. (2002; Calsoyasuchus valliceps). Stratigraphic chart based on Ogg, Ogg & Gradstein (2008).
Figure 3 in Redescription and phylogenetic relationships of Meridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay
Figure 3. Pholidosaurids included in the phylogenetic analysis, and their relationships. Scale bars: 10 cm, except for Meridiosaurus (5 cm).
FIGURE 2 in A new species of Sinoalidae from the (Hemiptera, Cicadomorpha) topmost Late Jurassic Daohugou Bed
FIGURE 2. Enlargements of Juroala pulchra sp. nov. moistened with 70% ethanol. A, Showing details of head structures, pronotum and mesonotum in ventral view. B, pronotum and mesonotum in dorsal view. C, Antenna. D, Abdomen. Abbreviations: sc, scape; pe, pedicel; fl, flagellum. Scale bars = 1 mm in A, B, D and 500 μm in C.
FIGURE 1 in A new species of Sinoalidae from the (Hemiptera, Cicadomorpha) topmost Late Jurassic Daohugou Bed
FIGURE 1. Holotype of Juroala pulchra sp. nov., from the topmost Daohugou Bed. A, Part, showing general habitus (NIGP171749a). B, Counterpart (NIGP171749b). C, Right tegmen. D, Left tegmen. Scale bars = 2 mm
FIGURE 1 in A new species of Crenoptychoptera Kalugina, 1985 (Diptera: Ptychopteridae) from the Middle-Late Jurassic of Jiyuan Basin, China
FIGURE 1. Crenoptychoptera gaoi sp. nov., Holotype NIGP174354). A, Photograph. B, Line drawing. Scale bars = 2 mm.
Middle to Late Jurassic palaeoclimatic and palaeoceanographic trends in the Euro-Boreal region: Geochemical insights from East Greenland belemnites
<p>Supplementary data and code for Vickers, M.L., Hougård, I.W., Alsen, P., Ullmann, C.V., Jelby, M.E., Bedington, M. and Korte, C., 2022. Middle to Late Jurassic palaeoclimatic and palaeoceanographic trends in the Euro-Boreal region: Geochemical insights from East Greenland belemnites. <em>Palaeogeography, Palaeoclimatology, Palaeoecology</em>, <em>597</em>, p.111014.</p>
Volcanism and carbon cycle perturbations in the High Arctic during the Late Jurassic – Early Cretaceous
<p>Dataset for Vickers, M.L., Jelby, M.E., Śliwińska, K.K., Percival, L.M., Wang, F., Sanei, H., Price, G.D., Ullmann, C.V., Grasby, S.E., Reinhardt, L. and Mather, T.A., 2023. Volcanism and carbon cycle perturbations in the High Arctic during the Late Jurassic–Early Cretaceous. <em>Palaeogeography, Palaeoclimatology, Palaeoecology</em>, <em>613</em>, p.111412.</p>
Fig. 4. 1–8 in New Spinicaudatan Species of Late Jurassic Linglongta Phase of Yanliao Biota from Western Liaoning, China
Fig. 4. 1–8. Linglongtaestheria daxishanensis gen. and sp. nov. 1, a right valve, NIGPCAS 163668 (L2–1) (light microscopy). 2, a broken right valve, NIGPCAS 163669 (L2–2) (light microscope). 3, displaced carapaces, NIGPCAS 163670 (L2–3) (light microscope). 4, small-sized polygonal reticulation on growth bands near the umbo of the specimen in figure 4.1 (SEM). 5, evenly distributed puncta on growth bands in the middle part of the carapace of the specimen in figure 4.1 (SEM). 6, two kinds of ornamentation pattern on growth bands in the postero-ventral part of the carapace of the specimen in figure 4.1, i.e., puncta in the upper and radial lirae with intercalated radially aligned puncta in the lower part of each growth band (SEM). 7, small-sized polygonal reticulation on growth bands in the antero-dorsal part of the carapace of the specimen in figure 4.3 (SEM). 8, two kinds of ornamentation pattern on growth bands in the ventral part of the carapace of the specimen in figure 4.3, i.e., puncta in the upper part and radial lirae with intercalated radially aligned puncta in the lower part of each growth band (SEM). Scale bars: (1–3) = 1 mm; (4) = 10 μm; (5) = 20 μm; (6–8) = 100 μm.
Fig. 3. 1–8 in New Spinicaudatan Species of Late Jurassic Linglongta Phase of Yanliao Biota from Western Liaoning, China
Fig. 3. 1–8. Linglongtaestheria daxishanensis gen. and sp. nov. 1, displaced carapaces, holotype, NIGPCAS 163667 (L1–1) (light microscopy). 2, small-sized polygonal reticulation on growth bands near the umbo (SEM). 3, evenly distributed small puncta on growth bands in the middle part of the carapace (SEM). 4, small-sized polygonal reticulation on growth bands in the antero-dorsal part of the carapace (SEM). 5,7, two kinds of ornamentation pattern on growth bands in the postero-ventral part of the carapace, i.e., punctate ornamentation in the upper, radial lirae with two rows of intercalated radially aligned puncta in the lower part of each growth band (SEM). 6, small-sized, polygonal reticulation transitions to radial lirae with intercalated radially aligned puncta on growth bands in the antero-dorsal part of the carapace (SEM). 8, two kinds of ornamentation pattern on single growth bands in the antero-ventral part of the carapace, i.e., puncta in the upper, punctate small-sized reticulation in the lower part of each growth band (SEM). Scale bars: (1) = 1 mm; (2, 5) = 20 μm; (4) = 50 μm; (3, 6–8) = 100 μm.
Fig. 2 in New Spinicaudatan Species of Late Jurassic Linglongta Phase of Yanliao Biota from Western Liaoning, China
Fig. 2. Stratigraphic column of the Tiaojishan Formation exposed near Daxishan village, Linglongta, Jianchang County, showing the fossil clam shrimp sampling horizons (after Duan et al. 2009).
Fig. 1 in New Spinicaudatan Species of Late Jurassic Linglongta Phase of Yanliao Biota from Western Liaoning, China
Fig. 1. Sampling locality at Daxishan village, Linglongta, Jianchang County, western Liaoning Province, China.
Late Jurassic Oceanic Plateau Subduction in the Bangong–Nujiang Tethyan Ocean of Northern Tibet
<p><strong>Supplemental material captions</strong></p> <p>Table S1. Summary of preexisting age data and locations for the Late Jurassic granitoids in the Southern Qiangtang block.</p> <p>Table S2. Summary of sample localities, rock types, zircon ages and mineral assemblages for the granitoids of Guobaoyue area.</p> <p>Table S3. Zircon U-Pb dating results for the granitoids of Gaobaoyue area.</p> <p>Table S4. Zircon Hf isotopic data for the granitoids of Gaobaoyue area.</p> <p>Table S5. Whole-rock major (wt.%) and trace (ppm) element compositions for the granitoids of Gaobaoyue area.</p> <p>Table S6. Whole-rock Sr–Nd–Hf isotopic compositions for the granitoids of Gaobaoyue area.</p>
Data from: Abelisauridae (Dinosauria: Theropoda) from the Late Jurassic of Portugal and dentition-based phylogeny as a contribution for the identification of isolated theropod teeth
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Data from: A new platychelyid turtle (Pan-Pleurodira) from the Late Jurassic (Kimmeridgian) of Oaxaca, México
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Data from: A giant pliosaurid skull from the Late Jurassic of England
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Data from: New records of the late Pliensbachian to early Toarcian (Early Jurassic) gladius-bearing coleoid cephalopods from the Ya Ha Tinda Lagerstätte, Canada
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