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821 results for “Middle Jurassic”
Fig. 3 in The first fossil wedge-shaped beetle (Coleoptera, Ripiphoridae) from the middle Jurassic of China
Fig. 3. Archaeoripiphorus nuwa Hsiao, Yu & Deng gen. et sp. nov., holotype. A. Head. B. Prothorax. C. Elytron. D. Antenna. E. Photograph of the surface of the body. Scale bars: A–C = 1.0 mm; D = 0.1 mm; E = 0.5 mm. The black arrows indicate the magnified portions.
Fig. 6. A in The first fossil wedge-shaped beetle (Coleoptera, Ripiphoridae) from the middle Jurassic of China
Fig. 6. A reconstruction of Archaeoripiphorus nuwa Hsiao, Yu & Deng gen. et sp. nov., illustrating a hypothesized behavior in which the females search for damaged xylem cells, caused by larvae of xylophagous beetles, to oviposit in wood.
Fig. 4 in The first fossil wedge-shaped beetle (Coleoptera, Ripiphoridae) from the middle Jurassic of China
Fig. 4. Archaeoripiphorus nuwa Hsiao, Yu & Deng gen. et sp. nov., holotype. A–F. Tibial spurs (indicated by the red arrows). A–B. Fore leg. C–D. Mid leg. E–F. Hind leg. G–H. Tarsal claw of mid leg. A, C, E, G. Photographs. B, D, F, H. Hand drawings. Scale bars: 0.5 mm.
Fig. 2 in The first fossil wedge-shaped beetle (Coleoptera, Ripiphoridae) from the middle Jurassic of China
Fig. 2. Archaeoripiphorus nuwa Hsiao, Yu & Deng gen. et sp. nov., holotype. A. Photograph of complete specimen. B. Habitus drawing. Scale bars = 5.0 mm.
Fig. 1 in The first fossil wedge-shaped beetle (Coleoptera, Ripiphoridae) from the middle Jurassic of China
Fig. 1. Archaeoripiphorus nuwa Hsiao, Yu & Deng gen. et sp. nov., holotype, habitus, dorsal view. Scale bar = 5.0 mm. Photograph of dry specimen.
Figure 2 in A new genus with two new species of mesosciophilids from the Middle Jurassic of China (Diptera: Nematocera: Mesosciophilidae)
Figure 2. Similsciophila singularis gen. et sp. nov., paratype, CNU-DIP-NN2011147 p/c. (A) Photograph of habitus (lateral aspect), part; (B) photograph of counterpart; (C) line drawing of holotype, counterpart; (D) photograph of antennae; (E) photograph of antennae with alcohol; (F) line drawing of antennae.
Fig. 4 in New cleroid beetles from the Middle-Late Jurassic of China
Fig. 4. Melyrid beetle Sinomelyris praedecessor gen. et sp. nov. (A), cleroid beetle Juraniscus majeri gen. et sp. nov. (B) from the Middle Jurassic, Haifanggou Formation of Daohugou Village, Inner Mongolia, China, and extant mauroniscid beetle Mauroniscus titschacki Pic, 1954 (C) from Cuzco, Peru. A. NIGP168477; reconstruction of body shape (A1), mesotarsus laterally (A2). B. NIGP168479; reconstruction of body shape (B1), assumed apex of aedeagus dorsally (B2). C. MMBC-SC, dorsal habitus.
Fig. 1 in New cleroid beetles from the Middle-Late Jurassic of China
Fig. 1. Melyrid beetle Sinomelyris praedecessor gen. et sp. nov. from the Middle Jurassic Haifanggou Formation of Daohugou Village, Inner Mongolia, China. A. Paratype, NIGP168477; dorsal habitus (A1), pronotum and head dorsally (A2), detail of front and middle legs (A3), right elytron and hind leg dorsally (A4). B. Holotype, NIGP168476; abdominal apex dorsally (B1), dorsal habitus (B2), pronotum and head dorsally (B3), detail of front, middle and hind legs (B4). Abbreviations: f1–3, femora of 1st to 3rd pair of legs; t1–2, tarsi of 1st to 2nd pair of legs.
Fig. 3. Extant melyrid beetles Melyris abdominalis Fabricius, 1787 in New cleroid beetles from the Middle-Late Jurassic of China
Fig. 3. Extant melyrid beetles Melyris abdominalis Fabricius, 1787 from Senegal and Falsomelyris granulatus Fabricius, 1792 (A) and from Hammoum, Algeria (B). A. MMBC-SC; base of elytra, pronotum, and head dorsally (A1), outline of pronotum (A2). B. MMBC-SC; detail of sculpture of head (B1), dorsal habitus (B2).
Fig. 2 in New cleroid beetles from the Middle-Late Jurassic of China
Fig. 2. Melyrid beetle Sinomelyris praedecessor gen. et sp. nov. (A) and cleroid beetle Juraniscus majeri gen. et sp. nov. (B) from the Middle Jurassic Haifanggou Formation of Daohugou Village, Inner Mongolia, China. A. Paratype, NIGP168478; head (A1), dorsal habitus (A2). B. Holotype, NIGP168479; mouth parts dorsally (B1), metatarsus dorsally (B2), dorsal habitus (B3), antenna dorsally (B4). Abbreviations: f1, front femur; l, labrum; m, mandible; p, terminal palpomere of maxillary palp.
FIG. 16 in Osteological revision of the holotype of the Middle Jurassic sauropod dinosaur Patagosaurus fariasi Bonaparte, 1979 (Sauropoda: Cetiosauridae)
FIG. 16. — Dorsal MACN-CH 4170 (14) in lateral (A, B), posterior (C), anterior (D), and dorsal (E) views.Abbreviations: acdl, anterior centrodiapophyseal lamina, cprl, centroprezygapophyseal lamina, dp, diapophysis, hypa, hypapophysis, nc, neural canal, ns, neural spine, pp, parapophysis, po, postzygapophysis, prcdf, prezygapophyseal centrodiapophyseal fossa, pocdf, postzygapophyseal centrodiapophyseal fossa, prdl, prezygapophyseal diapophyseal lamina, pre, prezygapophysis, sdf, spinodiapophysal fossa, spof, spinopostzygapophyseal fossa, spol, spinopostzygapophyseal lamina, sprf, spinoprezygapophyseal fossa, sprl, spinoprezygapophyseal lamina, tprl, intraprezygapophyseal lamina, tpol, intrapostzygapophyseal lamina, lat.spol/med.spol, lateral/medial spinopostzygapophyseal lamina, stpol, single intrapostzygapophyseal lamina, stprl, single intrapostzygapophyseal lamina, vk, ventral keel. Scale bar: 10 cm.
FIG. 4. — Cervical PVL 4170 in Osteological revision of the holotype of the Middle Jurassic sauropod dinosaur Patagosaurus fariasi Bonaparte, 1979 (Sauropoda: Cetiosauridae)
FIG. 4. — Cervical PVL 4170 (3) in lateral (A, B), posterior, (C) anterior, (D), ventral (E) and dorsal (F) views. Abbreviations: acdl, anterior centrodiapophyseal lamina, cprl, centroprezygapophyseal lamina, cpol, centropostzygapophyseal lamina, dp, diapophysis, hypa, hypapophysis, nc, neural canal, ns, neural spine, pcdl, posterior centrodiapophyseal lamina, pp, parapophysis, po, postzygapophysis, prcdf, prezygapophyseal centrodiapophyseal fossa, pocdf, postzyga- pophyseal centrodiapophyseal fossa, prdl, prezygapophyseal diapophyseal lamina, pre, prezygapophysis, sdf, spinodiapophysal fossa, spof, spinopostzyga- pophyseal fossa, spol, spinopostzygapophyseal lamina, sprf, spinoprezygapophyseal fossa, sprl, spinoprezygapophyseal lamina, tprl, intraprezygapophyseal lamina, vk, ventral keel. Scale bar: 10 cm.
FIG. 5 in Large polychelidan lobsters with a rounded carapace from the Middle Jurassic La Voulte-sur-Rhône Lagerstätte: taxonomic clarifications
FIG. 5. — Sketch of carapace outline,grooves and carinae of Proeryon charbonnieri n. sp. Abbreviations: a, branchiocardiac groove; ala, anterolateral angle; b1, hepatic groove; bc, branchial carina; bi, hepatic incision; c, postcervical groove; d, gastro-orbital groove; e1e, cervical groove; ei, cervical incision; lc, lateral carina; o, ocular incision; pc, postcervical carina; pla, posterolateral angle; po, postorbital carina; pr, postrostral carina. Not to scale.
Figure 3 in A skeleton from the Middle Jurassic of Scotland illuminates an earlier origin of large pterosaurs
Figure 3. Postcranial skeleton and dentition of the new Middle Jurassic pterosaur Dearc sgiathanach Photographs of the right manus (A), cervical series (B), pubic region (C), right humerus (D), left humerus (E), left metacarpal-phalanx articular region (F), right maxilla (G), and left pes (H) of NMS G.2021.6.1–4.
Figure 1 in A skeleton from the Middle Jurassic of Scotland illuminates an earlier origin of large pterosaurs
Figure 1. The new Middle Jurassic pterosaur Dearc sgiathanach (A–C) Photographs of main slab (NMS G.2021.6.1– 2), bones in dorsal view (A); wing phalanges 2–3 (NMS G.2021.6.3–4), in dorsal view (B); and main counterslab (NMS G.2021.6.3), bones in ventral view (C). (D–F) Schematic drawings of (A)–(C). (G–H) Reconstruction of skull in dorsal (G) and ventral (I) views and skeleton in lateral view (H). ar, articular region; cd, caudal vertebrae; cor, coracoid; cv, cervical vertebrae; d, digit; den, dentary; dors,dorsal vertebrae; dpc, deltopectoral crest; ep, extensor process; fm, femur; gas, gastralia; hdc, humeral distal condyle; hmt, humeral tubercle; isc, ischium; ju, jugal; max, maxilla; mc, metacarpal; mt, metatarsal; po, postorbital; r, ribs; sac, sacral plate; sca, scapula; scv, sacral (?) vertebrae; sm, sesamoid; sq, squamosal; st, sternum; symp, symphysis; uc, ulnar crest; ul, ulna; wp, wing phalanx; r/l, right/left. Blue on reconstructions are missing regions; red line in (E) is location of histological sectioning. Scale bars, 30 mm. See Figures S2 and S3.
Figure S3 in A skeleton from the Middle Jurassic of Scotland illuminates an earlier origin of large pterosaurs
Figure S3. Histology of the wing phalanx of the new Middle Jurassic pterosaur Dearc sgiathanach, Related to STAR Methods. Thin section in plane polarized light (a), crosspolarized light with a lambda filter (b), cross-polarized light (c), and illustration (d) of histological features: lines of arrested growth (red) and endosteal resorption (blue). Note position of external line of arrested growth very close to the external surface. (e) Inner cortex of wing phalanx under plane polarized light, showing densely vascularized fibrolamellar bone with a line of arrested growth (arrows). (f) Cortex of wing phalanx under cross-polarized light with a lambda filter, showing endosteal lamellae (el), lines of arrested growth (arrows), predominance of primary fibrolamellar bone (flb), and an external zone of parallel-fibered bone (pfb). Note parallel-fibered bone (appearing cyan) adjacent to the line of arrested growth. (g) External cortex of wing phalanx under plane polarized light, showing line of arrested growth (arrow) adjacent to the external bone surface (below dotted yellow line). (h) External cortex of wing phalanx under cross-polarized light, showing parallel-fibered bone (pfb) at the periosteal surface, possibly indicating a decrease in growth rate from the earlier fibrolamellar bone (flb). Arrows denote lines of arrested growth. Abbreviations: el, endosteal lamellae; flb, fibrolamellar bone; pfb, parallel-fibered bone.
Figure 3 in A skeleton from the Middle Jurassic of Scotland illuminates an earlier origin of large pterosaurs
Figure 3. Postcranial skeleton and dentition of the new Middle Jurassic pterosaur Dearc sgiathanach Photographs of the right manus (A), cervical series (B), pubic region (C), right humerus (D), left humerus (E), left metacarpal-phalanx articular region (F), right maxilla (G), and left pes (H) of NMS G.2021.6.1–4. ac, anterior caudal vertebrae; ar, articular region; c, condyle; cdv, caudal vertebrae; cor, coracoid; cv, cervical vertebrae; d, dentary; dc, distal condyle; dpc, deltopectoral crest; dvrt, dorsal vertebrae; en, enamel; exp, extensor process; fem, femur; ft, flexor tubercle; gas, gastralia; h, humerus; ic, intercondylar groove; isc, ischium; max, maxilla; mcp, metacarpal; md, maxillary dentition; mg, medial groove; mt, metatarsal; nss, neural spine scar; pa, preacetabular process; poz, postzygapophysis ppb, prepubis; prez, prezygapophysis; rad, radius; rb, rib; sac, sacrum; sm, sesamoid; uc, ulnar crest; ul, ulna; un, ungual; vert, vertebra; wp1, wing phalanx one. Scale, 10 mm per bar. See Figures S2 and S3.
Figure 2 in A skeleton from the Middle Jurassic of Scotland illuminates an earlier origin of large pterosaurs
Figure 2. Skull of the new Middle Jurassic pterosaur Dearc sgiathanach and comparisons of pterosaur brain and ear endocasts (A–L) Photographs (A–D), segmented MCT scan renderings (E–H), and schematic drawings (I–L) of the skull (NMS G.2021.6.2) in, from top to bottom, left lateral (reversed), dorsal, right lateral, and ventral views. (M–U) Brain and inner ear endocasts of Rhamphorhynchus (based on Witmer et al.7) (M, P, and Q), Dearc (N, R, and S), and Tapejara (based on Eck et al.8) (O, T, and U), shown in the skull in left lateral view and isolated in left lateral and dorsal views, respectively. asc, anterior semi-circular canal; bp, basisphenoid; cbl, cerebellum; cer, cerebrum; ch, choana; chl, channels; cv, third cervical; d, dentary; den, dentition; e, endocast; ec, ectopterygoid; et, edentulous anterior tip; f, frontal (?); hy, hyoid; ipv, interpterygoid vacuity; itf, inferior temporal fenestra; j, jugal; la, lacrimal; md, matrix infilled dent; mx, maxilla; n, nasal; olf, olfactory bulb; opl, optic lobe; p, parietal; pm, premaxilla; po, postorbital; ppd, post-palatal depression; psc, posterior semi-circular canal; ptf, pneumatic foramen; q, quadrate; qj, quadrojugal; rapr, retroarticular process; rh, probable placement of rhamphotheca; sof, suborbital fenestra; sq, squamosal; sbtf, subtemporal fenestra; stf, superior temporal fenestra. In (E)–(L), bones that cannot be distinguished in the MCT scan due to fusion or insufficient resolution are conservatively rendered together in one color. Scale bars, 30 mm. See Figure S2.
Figure S4 in A skeleton from the Middle Jurassic of Scotland illuminates an earlier origin of large pterosaurs
Figure S4. Results of phylogenetic analysis of the relationships of Dearc sgiathanach and other basal pterosaurs, Related to Figure 4 and STAR Methods. (a) Bootstrap Frequency difference (GC) tree without wildcard or problematic taxa removal from consensus (GC, 100 replicates); (b) Bootstrap absolute frequency tree with problematic taxa removed; (c) Bremer support values, (Bremer.run) with removal of problematic taxa. In each, the red box denotes the clade Angustinaripterini.
Figure S1 in A skeleton from the Middle Jurassic of Scotland illuminates an earlier origin of large pterosaurs
Figure S1. Locality information for the holotype of the new Middle Jurassic pterosaur Dearc sgiathanach, Related to STAR Methods. Map and geological context showing: Isle of Skye (a); geological map of the locality where the specimen was found, Brothers' Point (b); stratigraphic section at the discovery site (c); orthophoto of the pterosaur fossil location in relation to dinosaur trackways and evidence of desiccation (d). Figures c) & d) modified after dePolo et al. (2020).
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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