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527 results for “Mesozoic.”
Fig. 7 in New fossil data and phylogenetic inferences shed light on the morphological disparity of Mesozoic Sinoalidae (Hemiptera, Cicadomorpha)
Fig. 7 Abdomen of Mesodorus orientalis gen. et sp. nov.: a dorsal view; b ventral view; c enlargement of apical process of anal tube. Scale bars = 0.5 mm (a, b) or = 0.1 mm (c)
Fig. 4 in New fossil data and phylogenetic inferences shed light on the morphological disparity of Mesozoic Sinoalidae (Hemiptera, Cicadomorpha)
Fig. 4 Photographs of holotype of Mesodorus orientalis gen. et sp. nov.: a dorsal view; b ventral view. Scale bar = 1 mm
Fig. 2 in New fossil data and phylogenetic inferences shed light on the morphological disparity of Mesozoic Sinoalidae (Hemiptera, Cicadomorpha)
Fig. 2 Overall view of the entire amber piece containing the holotype of Mesodorus orientalis gen. et sp. nov.
Fig. 3 in New fossil data and phylogenetic inferences shed light on the morphological disparity of Mesozoic Sinoalidae (Hemiptera, Cicadomorpha)
Fig. 3 Line drawing of wings of holotype of Mesodorus orientalis gen. et sp. nov.: a tegmen; b hindwing
Persistently active El Niño–Southern Oscillation since the Mesozoic
<p>Data generated in this study are archived here.</p>
Figs 21–24 in The first Mesozoic Derbidae (Homoptera: Fulgoroidea) from Cretaceous Burmese amber
Figs 21–24. Achiderbe obrienae gen. et sp.n., holotype male, Burmese amber: 21 — habitus, ventral; 22 — head, lateroventral; 23 — abdomen, lateroventral; 24 — thorax and bases of wings, laterodorsal (inset, base of tegmen, rotated 180°; arrows, sensory pits on base of C). Scale bars: 21 — 1 mm, 22–24 — 0.5 mm. Рис. 21–24. Achiderbe obrienae gen. et sp.n., голотип, самец, бирманский Янтарь: 21 — обЩий вид, сниЗу; 22 — голова, сниЗу- сбоку; 23 — брЮШко сниЗу-сбоку; 24 — грудь и основаниЯ крыльев, сверху-сбоку (вреЗка, основание переднего крыла, повернуто на 180°; стрелки — сенсорные Ямки на основании C). Длина масШтабной линейки: 21 — 1 мм, 22–24 — 0,5 мм.
Figs 25–28 in The first Mesozoic Derbidae (Homoptera: Fulgoroidea) from Cretaceous Burmese amber
Figs 25–28. Venation of Derbachilini: 25–26 — Derbachile aschei sp.n.: 25 — tegmen; 26 — hind wing; 27 — Derbachile hochae gen. et sp.n., tegmen; 28 — Achiderbe obrienae gen. et sp.n., tegmen. Scale bars: 1.0 mm. Рис. 25–28. Жилкование Derbachilini: 25–26 — Derbachile aschei sp.n.: 25 — переднее крыло; 26 — Заднее крыло; 27 — Derbachile hochae gen. et sp.n., переднее крыло; 28 — Achiderbe obrienae gen. et sp.n., переднее крыло. МасШтабные линейки: 1,0 мм.
Figs 1–10 in The first Mesozoic Derbidae (Homoptera: Fulgoroidea) from Cretaceous Burmese amber
Figs 1–10. Derbachile hochae gen. et sp.n., holotype male, Burmese amber: 1 — habitus, dorsal; 2 — habitus, ventral; 3 — head and thorax, dorsal; 4 — head and thorax, ventral (arrows, subantennal ridges); 5 — tegmen, anterodorsal; 6–7 — C and stigmal cell: 6 — right, 7 — left tegmen; 8 — hind legs; 9 — genitalia, ventral; 10 — genitalia, dorsal. Scale bars: 0.5 mm. Рис. 1–10. Derbachile hochae gen. et sp.n., голотип, самец, бирманский Янтарь: 1 — обЩий вид, сверху; 2 — обЩий вид, сниЗу; 3 — голова и грудь, сверху; 4 — голова и грудь, сниЗу (стрелки — подусиковые кили); 5 — переднее крыло, спереди-сверху; 6–7 — C и стигмальнаЯ Ячейка: 6 — правое переднее крыло, 7 — левое переднее крыло; 8 — Задние ноги; 9 — гениталии, сниЗу; 10 — гениталии, сверху. Длина масШтабной линейки: 0,5 мм.
Data from: Bone-eating Osedax worms lived on Mesozoic marine reptile deadfalls
We report fossil traces of Osedax, a genus of siboglinid annelids that consume the skeletons of sunken vertebrates on the ocean floor, from early-Late Cretaceous (approx. 100 Myr) plesiosaur and sea turtle bones. Although plesiosaurs went extinct at the end-Cretaceous mass extinction (66 Myr), chelonioids survived the event and diversified, and thus provided sustenance for Osedax in the 20 Myr gap preceding the radiation of cetaceans, their main modern food source. This finding shows that marine reptile carcasses, before whales, played a key role in the evolution and dispersal of Osedax and confirms that its generalist ability of colonizing different vertebrate substrates, like fishes and marine birds, besides whale bones, is an ancestral trait. A Cretaceous age for unequivocal Osedax trace fossils also dates back to the Mesozoic the origin of the entire siboglinid family, which includes chemosynthetic tubeworms living at hydrothermal vents and seeps, contrary to phylogenetic estimations of a Late Mesozoic–Cenozoic origin (approx. 50–100 Myr).
Figure 1 in A new damsel-dragonfly from the Mesozoic of China with a hook-like male anal angle (Odonata: Isophlebioptera: Campterophlebiidae)
Figure 1. Angustiphlebia mirabilis gen. nov. et sp. nov. (A) Photograph of holotype specimen CNU-ODO-NN2011016, part only; (B) photograph of forewing; (C) line drawing of forewing, part and counterpart combined; (D) photograph of hind wing; (E) drawing of hind wing. Scale bars represent 10 mm.
Figure 2 in New finding of Mesozoic ephippia of the Anomopoda (Crustacea: Cladocera)
Figure 2. Ephippia of Earlier Cretaceous anomopods from Khutel-Khara, Mongolia. (A–D) Ephippium of type II on rock fragment 3695/3314, general view at different angle of observation, ventral portion and dorsal margin; (E–F) Ephippium of type III on fragment 3965/3336 at different angle of observation. Scale bars: 0.1 mm (Figures A–C, E, F); 0.01 mm (D).
Figure 1 in New finding of Mesozoic ephippia of the Anomopoda (Crustacea: Cladocera)
Figure 1. Ephippia of Earlier Cretaceous anomopods from Khutel-Khara, Mongolia. (A) Two ephippia on rock fragment 3965/3336; (B–D) Ephippium of type I from fragment 3965/3336, general view, ventral portion and its sculpture; (E–F) Ephippium of type I from fragment 3965/3339, general view and ventral portion. Scale bars: 0.1 mm (A–C, E); 0.01 mm (D, F).
Figure 4 in An evolutionary history embedded in amber: reflection of the Mesozoic shift in weevil-dominated (Coleoptera: Curculionoidea) faunas
Figure 4. Photos and drawings of Albicar contriti gen. et sp. nov. (CES–432, holotype), from Early Cretaceous El Soplao amber (Spain). A, photo and camera lucida drawing of the dorsal habitus; B, photo and camera lucida drawing of the lateral habitus, arrow marks the two spurs at the metatibial apex.
Figure 3 in An evolutionary history embedded in amber: reflection of the Mesozoic shift in weevil-dominated (Coleoptera: Curculionoidea) faunas
Figure 3. Photos and drawing of Arra legalovi gen. et sp. nov. (CES–576, paratype), from Early Cretaceous El Soplao amber (Spain). A, camera lucida drawing and photo of the dorsal habitus, arrows mark the seventh funicular article, slightly smaller than the preceding ones; B, ventral habitus; C, lateral habitus.
Figure 2 in An evolutionary history embedded in amber: reflection of the Mesozoic shift in weevil-dominated (Coleoptera: Curculionoidea) faunas
Figure 2. Photo and detail of Arra legalovi gen. et sp. nov. (CPT–4106, holotype), from Early Cretaceous San Just amber (Spain). A, dorsal habitus; B, camera lucida drawing and photo of the metatarsus, showing the partially fused tarsomeres 4 and 5, suture marked with an arrow.
Figure 1. 3D in An evolutionary history embedded in amber: reflection of the Mesozoic shift in weevil-dominated (Coleoptera: Curculionoidea) faunas
Figure 1. 3D reconstruction of Arra legalovi gen. et sp. nov. (CPT–4106, holotype), from Early Cretaceous San Just amber (Spain), using propagation phase-contrast X-ray synchrotron microtomography at beamline ID19, ESRF, Grenoble. A, dorsal habitus; B, right lateral habitus; C, left lateral habitus; D, ventral habitus; E, anterior habitus; F, posterior habitus.
Figure 5. 3D in An evolutionary history embedded in amber: reflection of the Mesozoic shift in weevil-dominated (Coleoptera: Curculionoidea) faunas
Figure 5. 3D reconstruction of Antiquis opaque gen. et sp. nov. (IGR.ARC–331.2, holotype), from mid-Cretaceous, latest Albian or earliest Cenomanian, Font-de-Benon amber (France), using propagation phase-contrast X-ray synchrotron microtomography at beamline ID19, ESRF, Grenoble. A, right lateral habitus; B, dorsal habitus; C, ventral habitus; D, left lateral habitus; E, anterior habitus; F, posterior habitus.
Dental replacement in Mesozoic birds: evidence from newly discovered Brazilian enantiornithines
<p>Micro-CT scan data and the surface files (.stl) of the dentitions of the Brazilian enantiornithine specimens, MPM-90, MPM-351, and MPM-373. Please refer to the original publication. </p>
FIGURE 9 in Pupae of Mesozoic Jurochlus Kalugina, 1985 (Diptera: Chironomidae), with description of four new species
FIGURE 9. Pupal exuviae of recent Boreochlus thienemanni (Podonominae) (Finland, near Oulanka biological station, limnocrene, 14.viii.1967, leg. Reiss): A, female, posterior part of segment VIII and segment IX (ventral view; crease between accessory genital sacs of sternite VIII and genital plate IX indicated by arrows); B, C, male: B, posterior part of segment VIII and segment IX (ventral view), C, segments V–IX (dorsal view).
FIGURE 10 in Pupae of Mesozoic Jurochlus Kalugina, 1985 (Diptera: Chironomidae), with description of four new species
FIGURE 10. Pupal exuviae of recent chironomids. A, B, Archaeochlus sp. 'kuiseb' (Podonominae) (Namibia, Kuiseb River, 4.ii.1998, leg. Cranston & Edward): A, female, segments IV–VIII (ventral view), B, female, posterior part of segment VIII and segment IX (ventral view; crease between accessory genital sacs of sternite VIII and genital plate IX indicated by arrows); C, D, Natarsia punctata (Fabricius, 1805) (Tanypodinae) (Georgia, Bakuriani, Bol'shoe Plateau, stream, 8.vi.1939, leg. Murvanidze): C, female, segments V–IX (ventral view), D, male, segment VIII and segment IX (ventral view).
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