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572 results for “Late Eocene”
FIGURE 2 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 2. Spicules of sponges of the order Agelasida; A—Verticillate style of the family Agelasidae; B–D—Verticillate oxeas of Agelas cf. axifera, family Agelasidae; E–G—Verticillate oxeas of Agelas cf. wiedemayeri, family Agelasidae; H, I—Oxea and style of Agelas sp., family Agelasidae.
FIGURE 15 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 15. Spicules of sponges of the order Halichondrida; A–G, I—Tuberculated diactines of Monocrepidium cf. eruca, family Bubaridae; H, J–L—Diactines of Bubaris sp., family Bubaridae.
FIGURE 5 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 5. Spicules of sponges of the order Astrophorida; A—Mesodichotriaene, family Pachastrellidae; B—Dichotriaene, family Pachastrellidae; C–G—Mesotriaenes of Pachastrella-like sponge, family Pachastrellidae; H–J—Calthrops of Calthropella sp., family Calthropellidae; K—Spicule of the order Astrophorida; L—Triaene of Brachiaster cf. claudlevii, family Pachastrellidae; M—Triaene of Triptolemma cladosum, family Pachastrellidae; N–O—Calthrop and dichotriaene of Dercitus (Stoeba)-like sponge, family Ancorinidae.
FIGURE 1 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 1. The paleogeographical map of Australia in the Late Eocene with the sampling sites included. P.R.—Princess Royal, N.—Norseman, D.R.—Doyle Road, H.R.—Hamersley River, B.P.—Blanche Point, PLC—Proto-Leeuwin Current, ACC—Antarctic Counter Current, light gray arrows—warm currents, dark gray arrows—cold currents; after McGowran & Alley (2008), modified.
FIGURE 9 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 9. Undetermined astrophorid triaenes; A–D, L, M—Protriaenes of order the Astrophorida; E, F, J, K, N—Orthotriaenes of the order Astrophorida; G–I—Prodichotriaenes of the order Astrophorida.
FIGURE 4 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 4. Spicules of sponges of the order Astrophorida; A–E—Sterraster microscleres of Geodia sp. 1, family Geodiidae; F–I—Sterraster microscleres of Geodia sp. 2, family Geodiidae; J–P—Different types of pynakids of the hypothetical species Dactylocalycites callodiscus, family?Geodiidae; Q–T—Spicules of the family Geodiidae; U–W—Triaenes of Penares cf. sclerobesa, family Geodiidae (subfamily Erylinae); X—Triaenes of Penares sp., family Geodiidae.
FIGURE 14. A in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 14. A. Micraster of recent Tethya omanensis (redrawn from van Soest & Beglinger 2008); B—Oxyaster of recent Tethyastra oxyaster (redrawn from Burton 1934).
FIGURE 16 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 16. Spicules of sponges of the order Haplosclerida; A–F—Different types of strongyles of Petrosia sp., family Petrosiidae.
FIGURE 8 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 8. Acanthoxeas of recent Alectona species; A—Alectona millari (from Rützler 2002); B—Alectona wallichii (from Vacelet 1999).
FIGURE 7 in Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record
FIGURE 7. Spicules of sponges of the order Astrophorida; A–E—Anatriaenes of Dercitus (Stoeba)-like sponge, family Ancorinidae; F–I—Different types of triaenes of Stelletta sp., family Ancorinidae; J–N—Different types of acanthoxeas of Alectona millari, family Thoosidae; O—Sanidaster-ataxaster of Dercitus (Stoeba)-like sponge, family Ancorinidae.
FIGURE 1 in Oracula campbelli sp. n.-the first fossil darkling beetle (Coleoptera: Tenebrionidae Alleculinae) from the late Eocene Rovno amber (Ukraine)
FIGURE 1. Oracula campbelli sp. n. from Rovno amber, habitus: A—dorsal view; B—lateral view (arrow in the inset shows the dark area of hollow claw); C—ventral view.
Fig. 1 in Dietary niches of creodonts and carnivorans of the late Eocene Cypress Hills Formation
Fig. 1.—Creodont and carnivoran species richness during the Eocene. Time is millions of years ago (Ma). Vertical dashed line indicates the age of the Calf Creek Local Fauna. Light gray indicates creodont species richness. Dark gray indicates carnivoran species richness. The data were downloaded from the Paleobiology Database on March 2018, using the group name 'mammalia' and the following parameters: time intervals = Cenozoic, region = North America, paleoenvironment = terrestrial. Species richness plot was constructed using the paleotree R package (Bapst 2012).
Fig. 3 in Dietary niches of creodonts and carnivorans of the late Eocene Cypress Hills Formation
Fig. 3.—Prey focus masses and prey mass spectra are based on regressions by Volmer et al. (2016). Silhouettes represent an example of prey animal for some of the size categories, as indicated by the vertical dashed lines. Horizontal dark gray bars show the range of prey mass categories for each species, and light gray bars show how those categories would extend if the species exhibited group hunting or scavenging behavior. Species codes and data can be found in Table 1. Note that we have included examples of species that occurred at the Calf Creek as examples of prey species in various size classes that may have lived concurrently to the species in this study.
Fig. 2 in Dietary niches of creodonts and carnivorans of the late Eocene Cypress Hills Formation
Fig. 2.—Principal component analyses of dental indicators of diet for fossil and extant carnivorous mammals. A) Orientation Patch Count (OPC), Dirichlet's Normal Surface Energy (DNE), and log 10 body mass of lower carnassial teeth; B) OPC, DNE, and and log 10 body mass of upper carnassial teeth; C) ratios of width divided by length and height divided by length, and log10 body mass of lower carnassial teeth; D) ratios of width divided by length and height divided by length, and log10 body mass of upper carnassial teeth. Arrows indicate direction and strength of loading of the variables onto the PCs. The polar bear (Ursus maritimus) silhouette indicates the area of the PCA space occupied by larger species, while the stoat silhouette (Mustela erminea) indicates the area of the PCA space occupied by smaller species. Species codes for the extinct taxa are Brachyrhynchocyon dodgei (Bd), Daphoenus sp. (Dsp), Dinictis felina (Df), Hesperocyon gregarius (Hgreg), Hoplophoenus mentalis (Hm), Parictis cf. P. personi (Pper), Parictis cf. P. gilpini (Pg), Parictis parvus (Pp), Hemipsalodon grandis (Hgrand), Hyaenodon horridus (Hh), and Hyaenodon microdon (Hmicro). Extant species are represented by bold text. Species codes for the extant species are Crocuta crocuta (Cc), Felis silvestris (Fs), Martes martes (Mm), Neovison vison (Nv), Procyon lotor (Pl), Puma concolor (Pc), and Vulpes lagopus (Vl).
Data (µCT) to "A new species of the genus Dolichoderus Lund, 1831 (Hymenoptera: Formicidae) from a Late Eocene European amber" by Dubovikoff D. and Zharkov D. in Caucasian Entomological Bulletin
<p>This dataset is the µCT scan of the holotype ( worker, JDC10574R) of †Dolichoderus jonasi Dubovikoff & Zharkov, 2022 that was used by Dubovikoff & Zharkov in publication "Dubovikoff, D. A., Zharkov, D. M. 2022. A new species of the genus Dolichoderus Lund, 1831 (Hymenoptera: Formicidae) from a Late Eocene European amber. Caucasian Entomological Bulletin 181, 147–152 (doi:10.23885/181433262022181-147152)."</p><p>Arrays of microtomographic data were obtained at St. Petersburg State University (St. Petersburg, Russia) using a desktop high-resolution X-ray microtomograph SkyScan 1172. The holotype (JDC10574R) was scanned with the following parameters: voltage 40 kV, current 250 µA, without filter, with a pixel size of 2.46 microns and a resolution of 2848 × 2692 pixels per slice with continuous 360° rotation and a shutter speed of 1300 ms per frame (2268 X-ray projections).</p><p>The material is currently deposited in the collection of the Kaliningrad Amber Museum, Kaliningrad, Russia.</p><p> </p>
Data from: Whence the beardogs? Reappraisal of the Middle to Late Eocene ‘Miacis’ from Texas, USA, and the origin of Amphicyonidae (Mammalia, Carnivora)
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Data from: Basilotritus uheni, a new cetacean (Cetacea, Basilosauridae) from the late Middle Eocene of Eastern Europe
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FIG. 54 in Mystacodon selenensis, the earliest known toothed mysticete (Cetacea, Mammalia) from the late Eocene of Peru: anatomy, phylogeny, and feeding adaptations
FIG. 54. — Life reconstruction of Mystacodon selenensis (painting by Alberto Gennari), showing this early toothed mysticete feeding along the seafloor off the coast of nowadays southern Peru.
FIG. 51 in Mystacodon selenensis, the earliest known toothed mysticete (Cetacea, Mammalia) from the late Eocene of Peru: anatomy, phylogeny, and feeding adaptations
FIG. 51. — Lateral view of the left innominate of some extinct and extant cetaceans. A, Basilosaurus isis (CGM 42176, cast); B, Mystacodon selenensis (MUSM 1917); C, Balaena mysticetus (LACM 072472), young female; D, B. mysticetus (LACM 0722490), adult female. Arrows indicate the posterior end of the vestigial obturator foramen in B. mysticetus. Not to scale.
FIG. 53 in Mystacodon selenensis, the earliest known toothed mysticete (Cetacea, Mammalia) from the late Eocene of Peru: anatomy, phylogeny, and feeding adaptations
FIG. 53. — Scatter plot showing the orbit orientation (measured as the posterolateral angle of the longitudinal axis of the orbit with the transverse plane) plotted against maximum orbital diameter vs the bizygomatic width. Color code: red, archaeocetes; green, toothed mysticetes; dark blue, fossil toothless mysticetes; light blue, extant mysticetes; orange, extant pinnipedimorphs; brown, fossil pinnipedimorphs. Plot modified from Marx (2011). Abbreviations: 1) archaeocetes: Ac, Artiocetus clavis; At, Aegyptocetus tarfa; Bi, Basilosaurus isis; Cp, Cynthiacetus peruvianus; Da, Dorudon atrox; Gv, Georgiacetus vogtlensis; So, Saghacetus osiris; Zk, Zygorhiza kochii; 2) toothed mysticetes: Ac, Aetiocetus cotylalveus; Aw, Aetiocetus weltoni; ChM PV 4745 and 5720, undescribed specimens from the Charleston Museum; Ch, Coronodon havensteini; Fb, Fucaia buelli; Fg, Fucaia goedertorum; Jh, Janjucetus hunderi; Mc, Mammalodon colliveri; Ms, Mystacodon selenensis; 3) chaeomysticetes: Am, Aglaocetus moreni; Ap, Aglaocetus patulus; Bm, Balaena mysticetus; Bb, Balaenella brachyrhynchus; Ba, Balaenoptera acutorostrata; Bp, Balaenoptera physalus; Bs, Balaenoptera siberi; Cm, Caperea marginata; Cr, Cetotherium rathkii; Dh, Diorocetus hiatus; Ea, Eubalaena australis; Eg, Eubalaena glacialis; Ej, Eubalaena japonica; Er, Eschrichtius robustus; Ia, Incakujira anillodefuego; Il, Isanacetus laticephalus; Me, Mixocetus elysius; Mm, Megaptera miocaena; Mn, Megaptera novaeangliae; Mp, Miocaperea pulchra; Pc, Pelocetus calvertensis; Pn, Piscobalaena nana; Pp, Parietobalaena palmeri; Yc, Yamatocetus canaliculatus; 4) Pinnipedimorphs: Ap, Arctocephalus philippii; Cc, Cystophora cristata; Db, Desmatophoca brachycephala; Et, Enaliarctos tedfordi; Hc, Homiphoca capensis; Hg, Halichoerus grypus; Hl, Hydrurga leptonyx; Ns, Neomonachus schauinslandi; Or, Ommatophoca rossii; Pb, Pteronarctos bishopi; Ph, Phocarctos hookeri; Pp, Piscophoca pacifica; Pr, Proneotherium repenningi; Pv, Phoca vitulina; Zc, Zalophus californianus.
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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
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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
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