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1,154 results for “Extant”
Complexity character scores for fossil and extant vascular plant reproductive structures
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Stepping into the past to conserve the future: archived skin swabs from extant and extirpated populations inform genetic management of an endangered amphibian
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Fig. 103 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives
Fig. 103. Ventrolateral (tympanic) views of left petrosals of †Dorudon atrox (UM 94812)
Fig. 95 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives
Fig. 95. Dorsomedial (cerebellar) views of left petrosal of Ziphius cavirostris (AMNH-M 70378)
Fig. 60 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives
Fig. 60. Ventrolateral (tympanic) views of left petrosal of Babyrousa babyrussa (AMNH-M 2238)
Fig. 50 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives
Fig. 50. Ventrolateral (tympanic) views of left petrosal of Potamochoerus porcus (AMNH-M 238329)
Fig. 78 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives
Fig. 78. Dorsomedial (cerebellar) views of left petrosal of Balaenoptera acutorostrata (USNM-M
Fig. 40 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives
Fig. 40. Ventrolateral (tympanic) views of left petrosal of †Protoceras celer (AMNH-VP 645)
Fig. 11 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives
Fig. 11. Ventrolateral (tympanic) views of left petrosal of †Leptomeryx sp. (AMNH-VP 53786)
Fig. 14 in An Anatomical And Phylogenetic Study Of The Osteology Of The Petrosal Of Extant And Extinct Artiodactylans (Mammalia) And Relatives
Fig. 14. Dorsomedial (cerebellar) views of left petrosal of Antilocapra americana (UC-MVZ 96100)
Spore size data for free-sporing extant and fossil plants
<p>The evolution of different spore size classes, or heterospory, is a fundamental reproductive innovation in land plants. The appearance of heterospory is particularly notable during the Devonian, when most known origins of the trait occur. Here we provide a perspective on the evolution of heterospory during this time interval, particularly from the late Early Devonian through the Middle Devonian (Emsian to Givetian stages; 408-383 Ma), which shows an unusually high concentration of heterospory origins. We use theoretical considerations and compilations of fossil and extant spore sizes to suggest that the basic features of most heterosporous lineages, large spores and gametophytes that mature within the spore wall, are difficult to evolve in combination because large spores disperse poorly but small spores cannot support a functional gametophyte developing within their walls; evolving spores between 100-200 microns in diameter appears to represent a particularly important barrier for the evolution of heterospory. We then discuss why this barrier may have been lower in the Devonian, noting that the appearance and spread of heterospory is coincident with the emergence of peat accumulating wetland habitats. We suggest that more widespread wetland habitats would have generally lowered barriers to the evolution of heterospory by reducing dispersal limitation in larger spores. Ultimately, we suggest that the initial evolution of heterospory may be explained by major changes in sedimentology, thought to have been driven by plant evolution itself, that increased the diversity of terrestrial depositional environments and led to a greater number of habitats where large spores could be successful.</p>
Fig. 10 in Extant diversity and estimated number of Gracillariidae (Lepidoptera) species yet to be discovered in the Neotropical region
Fig. 10. Annual variation in number of gracillariid species described for the Neotropical region.
Data from: No signal of deleterious mutation accumulation in conserved gene sequences of extant asexual hexapods
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Spore size data for free-sporing extant and fossil plants
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FIGURES 71–75 in The extant species of the genus Omma Newman and description of Beutelius gen. nov. (Coleoptera: Archostemata: Ommatidae: Ommatinae)
FIGURES 71–75. Omma stanleyi and Beutelius spp. abdominal ventrites and tergites: 71, B. rutherfordi (♂, holotype); 72, B. mastersi (♀) ventrites; 73, B. sagitta (♂) ventrites; 74, O. stanleyi (♀) ventrites; 75, B. sagitta (♂), tergites.
FIGURES 64–66 in The extant species of the genus Omma Newman and description of Beutelius gen. nov. (Coleoptera: Archostemata: Ommatidae: Ommatinae)
FIGURES 64–66. Omma stanleyi (♀) wing: 64, complete view; 65, wing base (in folded wing); 66, wing, apical field, with apical wing folding. Veinal nomenclature abbreviations: BR: radial basivenale. BM: redial basivenale. BCu: cubital basivenale. AA: anal anterior. AP: anal posterior. Cu: cubitus. C: costa. ScA: subcosta anterior. ScP: subcosta posterior. RA: radius anterior. RP: radius posterior. MP: media posterior. WC: wedge cell. BC: brachial cell. Cross-veins: rp-mp, r, cv1: mp3+4-cua, cv2: mp1+2-mp3+4, cv3: mp1+2-mp3.
FIGURES 22–26 in The extant species of the genus Omma Newman and description of Beutelius gen. nov. (Coleoptera: Archostemata: Ommatidae: Ommatinae)
FIGURES 22–26. Beutelius sagitta (♀): 22–25. Head: 22, dorsal, 23, ventral, 24, latero–ventral, 25, frontal; 26, B. mastersi (♀) habitus, lateral.
FIGURES 85–95 in The extant species of the genus Omma Newman and description of Beutelius gen. nov. (Coleoptera: Archostemata: Ommatidae: Ommatinae)
FIGURES 85–95. Beutelius spp., mentum: 85–86. 85, B. mastersi, 86, B. rutherfordi (paratype ♂); 87, B. mastersi, mesonotum; 88, B. mastersi, pterothorax, ventral; 89, B. rutherfordi, pterothorax, ventral; aedeagus: 90–95. 90, Omma stanleyi; 91–92, B. mastersi; 93, B. reidi sp. nov.; 94, B. rutherfordi; 95, B. sagitta.
FIGURES 76–84 in The extant species of the genus Omma Newman and description of Beutelius gen. nov. (Coleoptera: Archostemata: Ommatidae: Ommatinae)
FIGURES 76–84. Omma stanleyi (♀): 76–78. 76, foreleg, 77, midleg, 78, hind leg. Forelegs (♂): 79–84. 79, Beutelius rutherfordi; 80–81, O. stanleyi, 80, anterior view, 81, lateral view; 82–83, B. sagitta, 82, anterior view, 83, posterior view; 84, B. mastersi, anterior view.
Fig 6 in A Species-Level Phylogeny of Extant Snakes with Description of a New Colubrid Subfamily and Genus
Fig 6. Phylogenetic tree of Serpentes continued. A) Buhoma depressiceps and Elapidae. B) Elapidae continued. doi:10.1371/journal. pone.0161070. g006
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.