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965 results for “Theropods”
Fig 16 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 16. Forelimb morphospace for select theropods. Morphospace (unstandardized pPC2 versus pPC3 scores) of three forelimb measurements and femoral length in select non-avian theropod taxa analyzed under the Lambda model. Convex hull names follow Fig 14A and [21]. Almost identical patterns are found when data are analyzed under the Brownian Motion model.
Fig 15 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 15. Principal coordinates morphospace for forelimb traits in select non-avian Theropoda. PO1 versus PO2 morphospace based on Gower metric for 33 binary forelimb characters in a broad taxonomic sample of non-avian theropods. Datapoints marked with numerals represent the following taxa: 1, Eoraptor; 2, Herrerasaurus; 3, Deltadromeus; 4, Compsognathus; 5, Ornitholestes; 6, Harpymimus; 7, Struthiomimus; 8, "Dilophosaurus" sinensis; 9 Gualicho. Convex hulls correspond to groups in identified in Fig 14A.
Fig 13 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 13. Right foot of Gualicho shinyae. Right pedal elements of the holotype of Gualicho shinyae including distal ends of metatarsals II and III and phalanges of digits II-IV in (A) ventral, (B) medial, and (C) lateral views. Combinations of Roman and Arabic numerals in (A) identify individual phalanges. Abbreviations: clp, collateral ligament pit; ef, extensor fossa; mt II, metatarsal II; mt III, metatarsal III.
Fig 12 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 12. Left third metatarsal of Gualicho shinyae. Left third metatarsal of the holotype specimen of Gualicho shinyae in (A) posterior, (B) anterior, (C) medial, (D) lateral, and (E) proximal views. Abbreviation: ef, extensor fossa. doi:10.1371/journal.pone.0157793.g012
Fig 3 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 3. Preserved caudal vertebrae of Gualicho shinyae. Three mid-caudal vertebrae of the holotype of Gualicho shinyae. Anteriormost caudal in (A) posterior view, (B) anterior view, (C) right lateral and (D) dorsal views. Middle of the three caudals in (E) posterior, (F) anterior, (G) left lateral, and (H) ventral views. Posteriormost of the three caudals in (I) right lateral, (J) left lateral, and (K) dorsal views. Abbreviations: ns, neural spine; prz, prezygapophysis; pz, postzygapophysis; trp, transverse process.
Fig 5 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 5. Left scapulocoracoid of Gualicho shinyae. Scapulocoracoid of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in (A) posterolateral oblique (B) lateral, and (C) medial views. Dotted line indicates boundary between scapula and coracoid. Abbreviations: cf, coracoid foramen; gl, glenoid; nab, notch between scapular blade and acromion process.
Fig 9 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 9. Distal pubes of Gualicho shinyae. Distal pubic shafts and pubic boot of the holotype specimen of Gualicho shinyae in (A) right lateral and (B) anterior views. Abbreviation: pb, pubic boot. doi:10.1371/journal.pone.0157793.g009
Fig 11 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 11. Right shank elements of Gualicho shinyae. Partial right fibula of the holotype specimen of Gualicho shinyae in (A) medial, (B) lateral, and (C) proximal views. Partial right tibia in (D) medial, (E) posterior, (F) lateral, (G) anterior, and (H) proximal views. Abbreviations: alt, anterolateral process; cn, cnemial crest; fic, fibular crest; ff, fibular fossa; ifc, crest for insertion of m. iliofibularis; lc, lateral condyle; mc, medial condyle; tf, triangular (posterior) flange. doi:10.1371/journal.pone.0157793.g011
Fig 6 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 6. Forelimb elements of Gualicho shinyae. Left humerus of the of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in (A) anterior, (B) posterior, (C) proximal, and (D) distal views. Left ulna and attached semilunate distal carpal of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in (E) lateral, (F) posterior, and (G) anterior views. Left radius of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in (H) lateral, and (I) medial views. Abbreviations: dpc, deltopectoral crest; ics, intercondylar sulcus; it, internal tuberosity; msh, scar for insertion of m. scapulohumeralis; olp, olecranon process base; sdc, semilunate distal carpal.
Fig 2 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 2. Articulated dorsal vertebral centra of Gualicho shinyae. A series of articulated posterior dorsal vertebral centra of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in (A) left lateral, (B) right lateral, (C) ventral, and (D) anterior views. Abbreviation: pnf, pneumatic foramen. doi:10.1371/journal.pone.0157793.g002
Fig 8 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 8. Left manual digits of Gualicho shinyae. Digit I phalanges in (A, D) medial, (B, E) lateral, and (C, F) dorsal views. Digit II phalanges in (G-I) medial, (J-L) lateral, and (M-O) dorsal views. Abbreviations: clp, collateral ligament pit; ft, flexor tubercle; t tuber. doi:10.1371/journal.pone.0157793.g008
Fig 10 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 10. Right femur of Gualicho shinyae. Right femur of the holotype specimen of Gualicho shinyae in (A) medial, (B) lateral, (C) posterior, (D) anterior, (E) proximal, and (F) distal views. Abbreviations: 4t, fourth trochanter; at, accessory trochanter; clt, cruciate ligament tuber; ctf, crista tibiofibularis; gt, greater trochanter; lt, lesser trochanter; mc, medial condyle; pof, popliteal fossa.
Fig 6 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 6. Forelimb elements of Gualicho shinyae. Left humerus of the of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in (A) anterior, (B) posterior, (C) proximal, and (D) distal views. Left ulna and attached semilunate distal carpal of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in (E) lateral, (F) posterior, and (G) anterior views. Left radius of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in (H) lateral, and (I) medial views. Abbreviations: dpc, deltopectoral crest; ics, intercondylar sulcus; it, internal tuberosity; msh, scar for insertion of m. scapulohumeralis; olp, olecranon process base; sdc, semilunate distal carpal. doi:10.1371/journal.pone.0157793.g006
Fig 7 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 7. Wrist and palm elements of Gualicho shinyae. Articulated metacarpals I-III of the holotype specimen of Gualicho shinyae in (A) dorsal, (B) ventral, (C) distal, and (D) proximal views. Scapholunare of the holotype specimen of Gualicho shinyae in (E) proximal and (F) distal views. Abbreviation: mc, metacarpal.
Fig 4 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 4. Posterior gastral arches of Gualicho shinyae. Last four preserved gastral arches of the holotype specimen of Gualicho shinyae (MPCN PV 0001) in dorsal view. Abbreviations: lg, lateral gastralia; mg, medial gastralia.
Fig 1 in An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina
Fig 1. Life reconstruction of skeletal remains of Gualicho shinyae and stratigraphic and geographic details of the find. (A) Map of Rio Límay region of northern Patagonia, showing where the holotype of Gualicho shinyae was discovered (star) (B) Schematic stratigraphic column of lower part of Neuquén Group (Upper Cretaceous) strata exposed in the Neuquén Basin with approximate level at which the holotype of Gualicho shinyae was collected from the base of the Huincul Formation. See S1 Fig for excavation photos. (C) Skeletal reconstruction of Gualicho shinyae showing recovered elements in white and missing elements in grey shading. Artwork by J. González. doi:10.1371/journal.pone.0157793.g001
BIRUG107071 - Grallator sp. - Theropod Footprint
BIRUG107071 is a trace fossil of a theropod dinosaur. While the animal that made the footprint is unknown, trace fossils (ichnofossils) do receive similar nomenclature to organisms. This ichnofossil is *Grallator* sp. and only the ichnogenus has been determined, while the ichnospecies name has yet to be defined. Fossil footprints from dinosaurs, such as this one, better our understandings of dinosaurs and the animals that left these fossils behind. Although this is a single fossil it can tell palaeontologists where most of the force was applied when the track-maker took a step, which can help determine how they walked. If multiple tracks of the same animal are found, the gait, speed, and other behaviors can be determined. This specimen was collected from Burniston Wyke, North Yorkshire, England. This specimen was digitized with photogrammetry by Andy Jones, description by Jonathan Kimel. Source: Objaverse 1.0 / Sketchfab
Heterochrony structured theropod wing for flight and influenced its evolutionary paths
<p>The theropod forewing evolution could have been shaped by changes in developmental timing, as seen for the skull. Theropods leading to birds suffered miniaturization with forelimb lengthening attributed to heterochrony (changes in developmental timing and/or rate) which has never been strictly tested. Using phylogenetic analysis of growth series shape-change, we detected paramorphism in the paravian node as an immature wing resembling adult early-diverging theropods. The coinciding development of pennaceous feathers, longer wings, and mobile shoulders in the paravian common ancestor demonstrates a major reorganization of the forelimb just before flight appeared. Once flight evolved, heterochrony continued influencing wing evolution and the rapid early diversification of avian flight styles. Our study extends the role of heterochrony to the wings of theropods, playing a central role in flight evolution.</p>
Data from: An exquisitely preserved in-ovo theropod dinosaur embryo sheds light on avian-like prehatching postures
<p>Phylogenetic data matrix</p> <p>Supplemental anatomical description of YLSNHM01266</p>
Data from: Late Cretaceous European theropod palaeobiodiversity, palaeobiogeography and the intra-Maastrichtian faunal turnover: new contributions from the Iberian fossil site of Laño
<p>A total of 227 theropod teeth have so far been recovered from the late Campanian Laño site (northern Iberian Peninsula). The teeth were studied for their qualitative and quantitative features. From the theropod sample found at Laño, seven morphotypes attributed to five taxa are identified: a medium to large abelisaurid (<i>Arcovenator</i> sp.) and four small coelurosaurians (Dromaeosauridae indet., Paraves indet., cf. <i>Paronychodon</i> sp. and cf. <i>Richardoestesia</i> sp.). Together with the ground bird <i>Gargantuavis</i> and a possible ornithomimosaur, the theropod fauna of Laño might be composed of two medium- to large-sized non-avian theropods, four small-bodied non-avian theropods and a large terrestrial bird. This makes the Laño site the richest and most diverse latest Cretaceous theropod site of Europe. Furthermore, the Laño site and the Late Cretaceous localities of Europe that have yielded theropod remains suggest that the medium- to large-sized theropods were abelisaurids or indeterminate theropods. The small theropods are more abundant, diverse and represented by different dromaeosaurids, <i>Paronychodon</i>, <i>Richardoestesia</i>, or related forms, troodontids and, probably, by other paravians. Among birds, enantiornithines, gargantuaviids and ornithurines are also common in the European Late Cretaceous sites. The theropod assemblage of Laño, together with the taxa of other Late Cretaceous sites, supports the idea that several theropod dispersal events took place during the Cretaceous. This resulted in a mixture of European endemic, Asiamerican and Gondwanan forms. This study also supports the hypothesis that the intra-Maastrichtian faunal turnover that occurred in the Ibero-Armorican landmass seems to have had no effect on theropods.</p>
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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)
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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.