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4,648 results for “frog”
Figure 15 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 15. Transverse sections of the skulls of two anuran taxa through the region of the optic foramina. A, Rhinophrynus dorsalis (KU 186799). B, Xenopus muelleri (KU 196041). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Bone is shown in black and cartilage is shown in grey. Not to scale.
Figure 4 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 4. Reconstruction of the skull of Llankibatrachus truebae in dorsal view, based primarily on specimens BAR 2469– 10 and 2367–1. Scale bar = 1 mm.
Figure 6 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 6. Llankibatrachus truebae. Young postmetamorphic specimens. Photographs of (A) BAR 3080–10 and (B) BAR 2467–10. Scale bars = 5 mm
Figure 19 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 19. Premaxillae in frontal view and anterior ends of maxillae in two anuran taxa. A, Pelobates syriacus (KU, 146856). B, Xenopus laevis (KU 195934). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Not to scale.
Figure 3 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 3. Partial reconstruction of the skeleton of an adult Llankibatrachus truebae in dorsal view. Based on several specimens (e.g. BAR 2367–1, 2469–10, 2479–10, BAR -1). Scale bar = 3 mm.
Figure 2 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 2. Photograph of Llankibatrachus truebae (Holotype, BAR 2469–10) representing a nearly complete, articulated cranial and postcranial skeleton. The specimen is mostly preserved as a dorsal impression, although the ventral surface of several sectioned bones still in situ is also evident. Note the body outline preserved in this specimen. Scale bar = 3 mm.
Figure 14 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 14. Nasals and sphenethmoid of two anuran taxa in dorsal view. A, Shelania pascuali (CBPA 12213). B, Xenopus laevis (KU 69842). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Not to scale.
Figure 11. Nieuwkoop & Faber Stage 57 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 11. Nieuwkoop & Faber Stage 57/58 tadpole of Llankibatrachus truebae in ventral view. The irregular, stippled area in the posterior half of the head denotes calcium deposits. Stippling in the left leg (right side of the figure) shows ossification of the femur, tibia, and fibula. Scale bar = 3 mm.
Figure 1 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 1. Map of north-western Patagonia showing location of the two fossiliferous sites near the northern margin of the Nahuel Huapi Lake, from which Llankibatrachus truebae was recovered.
Figure 5 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 5. Skull and pectoral girdle of Llankibatrachus truebae in ventral view (BAR 2720–10). Bones are shown in stippling; dashed lines indicate broken bones. Scale bar = 1 mm.
Figure 8 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 8. Ventral view of the left humerus. A, Llankibatrachus truebae (BAR 2367–1, partially reconstructed). B, Xenopus muelleri (MCZ 1631). 'Xenopus' romeri (DNPM 572, right humerus reversed). Not to scale.
Figure 17 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 17. Dorsal views of the skulls of three anuran taxa. A, Discoglossus sardus (KU 129239). B, Saltenia ibanezi redrawn from Báez (1981: fig. 2). C, Xenopus muelleri (KU 196043). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Spaces between bones are shown in black, cartilage is shown in grey, and bone is shown in white; the pterygoids are stippled. Not to scale.
Figure 26 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 26. Mandibles and hyoid apparatuses of two anuran taxa in ventral view. A, Pipa parva (USNM 115771). B, Silurana tropicalis (KU 195667). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Cartilage is shown in grey, bone is shown in white, and combined grey and stippling denotes calcification. Not to scale.
Figure 23 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 23. Scapulae of two anuran taxa in ventral view. A, Pipa carvalhoi (MCZ 97277). B, Xenopus laevis (KU 69842). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Not to scale.
Figure 22. Vertebrae I–IV in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 22. Vertebrae I–IV of two anuran taxa in dorsal view. A, Xenopus wittei (KU 195673). B, Rhinophrynus dorsalis (KU 69084). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Spaces between bones are shown in black, cartilage is shown in grey, and bone is shown in white. Not to scale.
Figure 2. A, Tree resulting from maximum likelihood analysis from the 12S in A molecular perspective on the evolutionary affinities of an enigmatic neotropical frog, Allophryne ruthveni
Figure 2. A, Tree resulting from maximum likelihood analysis from the 12S data set using the Hasegawa–Kishino–Yano two parameter model (Hasegawa et al., 1985). Included for comparative purposes are bootstrap support from NJ analyses. Below each resolved branch are indicated percentage bootstrap support in excess of 50% for: ML (100 pseudoreplicates), NJ (1000 pseudoreplicates; Kimura 2-parameter), NJ (1000 pseudoreplicates; Tamura–Nei). B, Strict consensus of three most parsimonious trees (all substitutions weighted equally; tree length = 164 steps). Below each branch are indicated percentage bootstrap support (1000 pseudreplicates) in excess of 50% for: MP (unweighted), MP (stems weighted twice loops), MP (transversions weighted four times transitions). Bremer decay indices (DI) are the final value shown below each resolved branch (for MP unweighted only). A dash indicates bootstrap support of less than 50%.
Figure 3. A, Tree resulting from a in A molecular perspective on the evolutionary affinities of an enigmatic neotropical frog, Allophryne ruthveni
Figure 3. A, Tree resulting from a maximum likelihood analysis from the combined data set using the Hasegawa–Kishino–Yano two-parameter model (Hasegawa et al., 1985). Included are bootstrap support values for NJ analyses. Below each resolved branch are indicated percentage bootstrap support in excess of 50% for: ML (100 pseudoreplicates), NJ (1000 pseudoreplicates; Kimura 2-parameter), NJ (1000 pseudoreplicates; Tamura–Nei). B, Strict consensus of eight most parsimonious trees (tree length = 441 steps) derived from a heuristic search of combined data set (unweighted). Below each supported branch are indicated percentage bootstrap values (1000 pseudreplicates) in excess of 50% for: MP (unweighted), MP (stems positions weighted twice loops), MP (transversions weighted twice transitions). Bremer decay indices (DI) are the final value shown below each resolved branch (for MP unweighted only).
Figure 1 in Systematics of a widespread Southeast Asian frog, Rana chalconota (Amphibia: Anura: Ranidae)
Figure 1. Map illustrating the provenance of specimens and tissues of the Rana chalconota species group used in this study. Squares represent specimens only, and circles represent both tissues and specimens.
Figure 2 in Systematics of a widespread Southeast Asian frog, Rana chalconota (Amphibia: Anura: Ranidae)
Figure 2. Fifty per cent majority-rule consensus phylogram resulting from mixed-model Bayesian analysis of mitochondrial DNA from frogs of the Rana chalconota species group. Trees were rooted with R. erythraea and R. nigrovittata (not shown). Numbers above and below nodes are Bayesian posterior probabilities and parsimony bootstrap values> 50, respectively. An asterisk (*) indicates a Bayesian posterior probability of 1.00 and parsimony bootstrap value of 100. Maximum parsimony analysis resolved the clades Peninsular Malaysia D [Peninsular Malaysia C (Thailand + Padang Small)], but without bootstrap support.
Fig. 8 in Head in the clouds: a new dwarf frog species of the Physalaemus signifer clade (Leptodactylidae, Leiuperinae) from the top of the Brazilian Atlantic Forest
Fig. 8. Interspecific phylogenetic relationships of Physalaemus araxa sp. nov. inferred from 12S rRNA, tRNA-val, and 16S rRNA mitochondrial genes (H1 fragment sequences) by MrBayes and TNT. Numbers indicate posterior probabilities (left) or bootstrap values (right) in the MrBayes and TNT analyses, respectively. Hyphens indicate nodes that were not recovered in the TNT analysis.
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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.