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23,351 results for “Comparative”
FIGURE 3 in Comparative Meristic Variability in Whiptail Lizards (Teiidae, Aspidoscelis): Samples of Parthenogenetic A. tesselata Versus Samples of Sexually Reproducing A. sexlineata, A. marmorata, and A. gularis septemvittata
FIGURE 3. Pattern of meristic variation between parthenogenetic Aspidoscelis tesselata C (○) and gonochoristic A. sexlineata (◊): A. southeastern Colorado (N = 31 for each sample); B. Conchas Lake, New Mexico (N = 30 and N = 31, respectively). Percentages represent the proportion of meristic variation summarized by each principal component, and ellipses define the 95% confidence limits for score distributions.
FIGURE 2 in Comparative Meristic Variability in Whiptail Lizards (Teiidae, Aspidoscelis): Samples of Parthenogenetic A. tesselata Versus Samples of Sexually Reproducing A. sexlineata, A. marmorata, and A. gularis septemvittata
FIGURE 2. Representative specimens used in this study. Southeastern Colorado: A. Aspidoscelis tesselata C (RU 0198; 93 mm SVL); B. A. sexlineata (RU 0334; ♂, 71 mm SVL). Conchas Lake, New Mexico: C. A. tesselata C (RU 0003; 86 mm SVL); D. A. sexlineata (GM 236 [UADZ 7405]; ♀, 61 mm SVL).
FIGURE 4 in Comparative Meristic Variability in Whiptail Lizards (Teiidae, Aspidoscelis): Samples of Parthenogenetic A. tesselata Versus Samples of Sexually Reproducing A. sexlineata, A. marmorata, and A. gularis septemvittata
FIGURE 4. Representative specimens used in this study. Engle, New Mexico: A. Aspidoscelis tesselata E (RU 9546; 87 mm SVL); B. A. marmorata (RU 9262; ♀, 84 mm SVL). Arroyo del Macho, New Mexico: C. A. tesselata E (RU 0228; 84 mm SVL); D. A. marmorata (RU 0390; ♀, 79 mm SVL). Presidio County, Texas: E. A. gularis septemvittata (UADZ 8115; ♂, 90 mm SVL).
FIGURE 13 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 13. Cladogram of the "Toxodont" analysis. Strict consensus (left) and majority 50% consensus of the "Toxodont" phylogenetic analysis. Nodes: A, Colpodon; B, "Tropical clade"; C, Leontiniidae; D, "advanced Toxodontia"; E, Toxodontidae; F, "notohippid" + Toxodontidae. Numbers at nodes represent percent support when support is less than 100%.
FIGURE 7 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 7. Proximal (right) tarsals of leontiniids. A, calcaneum of cf. Elmerriggsia fieldia (PM 413); B, astragalus of cf. Elmerriggsia fieldia (PM 415); C, calcaneum of Scarrittia canquelensis (AMNH 29626), in dorsal and distal views; and D, astragalus of Scarrittia canquelensis (AMNH 29626), in dorsal and distal views. Abbreviations: cu, cuboid; ect, ectal; f, facet; fib, fibula; nav, navicular; sus, sustentacular.
FIGURE 4. 40 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 4. 40Ar/39Ar age spectra and inverse isochron plots for samples CH-31 (above) and CH-32 (opposite page). Age spectra illustrate apparent age versus cumulative fraction of 39Ar released. Shaded boxes indicate steps used to calculate weighted mean plateau ages. Plotting these steps suggests that most of them fall on simple isochrons with a 40Ar/36Ar ratio of the trapped component somewhat higher than atmospheric gas, giving a more reliable estimate of the ages at ~19.5 Ma, or ~19.8 Ma when corrected for a revised age of the Fish Canyon Tuff standard.
FIGURE 9 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 9. Selected dental characters of A, Anayatherium fortis, cast of holotype, alveoli of I3–P1 are exposed to show that A. fortis had a complete dental formula; B, m2 of Thomashuxleya externa (AMNH 28697) in occlusal (upper) and oblique (lower) views; and C, left m2 of Scarrittia canquelensis (AMNH 29592) in occlusal (upper) and lateral (lower) views. B and C illustrate the hypothetical evolution of the "paraconid" from the mesiolingual cingulid.
FIGURE 8 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 8. Knee region of leontiniids. A, left distal femur and proximal tibia-fibula (P 13632) in dorsal and lateral views of c.f. Elmerriggsia fieldia; and B, right (reversed to show as left) distal, femur of Anayatherium, cf. A. fortis in dorsal, lateral and distal views. Scale bar applies to all.
FIGURE 14 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 14. Cladogram of the "Typothere included" analysis. Strict consensus (left) and majority 50% consensus of the "Typothere included" phylogenetic analysis. Nodes: A, Colpodon; B, "Tropical clade"; C, Leontiniidae; D, "advanced Toxodontia"; E, Toxodontidae; F, "notohippid"+Toxodontidae (Eurygenium excluded); G, "advanced Toxodontia" plus interatheriine interatheriids. Numbers at nodes represent percent support when support is less than 100%.
FIGURE 12 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 12. Hypothetical pedal transition series in Notoungulata showing left pes in dorsal view (upper row), left calcaneum in dorsal view (middle row), and left calcaneum in medial view (lower row). Illustrations are not to scale. Abbreviations are as follows: ast, astragalus; calc, calcaneum; cu, cuboid; ect, ectocuneiform; f, facet; fib, fibula; Mt, metatarsal; nav, navicular; sus, sustentacular; troch, trochlea.
FIGURE 3 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 3. Left dentitions of Colpodon spp.: Colpodon antucoensis, new species (SGOPV 5704) in lateral (A) and occlusal (B) views; C, Colpodon propinquus (FMNH P 13310) in occlusal view. The numbers below the descriptors indicate character number (#) and state (see Character Analysis). Scale bar applies to all.
FIGURE 11 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 11. Hypothetical manual transition series in Notoungulata. All hands shown as left. Not drawn to scale. Abbreviations: Cun, cuneiform; Lu, lunate; Mg, magnum; Sc, scaphoid; Td, trapezoid; Tm, trapezium. Roman numerals indicate digit number.
FIGURE 5 in New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses
FIGURE 5. Upper cheek teeth of Elmerriggsia fieldia, new taxon. A, P 13386, holotype, P2–M2; B, PM 61102, right M1; C, PM 61101, right P1–P3; and D, P 15060, unworn, right P3. Scale bar applies to all.
Text-fig. 2. Scatter diagram of the length/width ratio of the upper fourth premolar (P4) of Chalicomys jaegeri from Grytsiv as compared to those of C. jaegeri only (a) and additionally of Euroxenomys minutus rhenanus (E. min rhen), Euroxenomys minutus (Eurex min) (b) from other localities. Abbreviations for localities: Cana – Çanakkale (probably MN 8/9 after Sen 2016; data from Ünay 1974), DornD – Dorn-Dürkheim 1 (MN 11; data from Franzen and Storch (1975) for both C. jaegeri and E. minutus rhenanus), Epp – Eppelsheim (MN 9; Stefen 2009), Kücük – Küçükçekmece (probably MN 8/9; Sen 2016), and Sansan (MN 6 after Sen 1997; data from Hugueney and Duranthon 2012). A single specimen from Grytsiv (G) – NMNHU-P 22/218 is tentatively assigned to Euroxenomys minutus based on its size. in Beavers (Castoridae, Rodentia) From The Late Miocene (Mn 9) Locality Grytsiv In Ukraine
Text-fig. 2. Scatter diagram of the length/width ratio of the upper fourth premolar (P4) of Chalicomys jaegeri from Grytsiv as compared to those of C. jaegeri only (a) and additionally of Euroxenomys minutus rhenanus (E. min rhen), Euroxenomys minutus (Eurex min) (b) from other localities. Abbreviations for localities: Cana – Çanakkale (probably MN 8/9 after Sen 2016; data from Ünay 1974), DornD – Dorn-Dürkheim 1 (MN 11; data from Franzen and Storch (1975) for both C. jaegeri and E. minutus rhenanus), Epp – Eppelsheim (MN 9; Stefen 2009), Kücük – Küçükçekmece (probably MN 8/9; Sen 2016), and Sansan (MN 6 after Sen 1997; data from Hugueney and Duranthon 2012). A single specimen from Grytsiv (G) – NMNHU-P 22/218 is tentatively assigned to Euroxenomys minutus based on its size.
Text-fig. 8. Cross section through the right metatarsal II in distal view. Additionally, the tilt of the greatest shaft diameter compared to the original proximal horizontal orientation is shown. in Castor-Like Postcranial Adaptation In An Uppermost Miocene Beaver From The Staniantsi Basin (Nw Bulgaria)
Text-fig. 8. Cross section through the right metatarsal II in distal view. Additionally, the tilt of the greatest shaft diameter compared to the original proximal horizontal orientation is shown.
Text-fig. 13. Scatter diagram of m1 length vs SDQ for pre-Eemian (time slice 5) Arvicola samples from different geographical provenances compared with M. savini-A. mosbachensis and Arvicola sapidus. Empty dotted ovals indicate the range of extant Arvicola ex gr. amphibius samples from Italy (cyan) and from the other European locations (green) Abbreviations: FR – France, GE – Germany, IT – Italy, SP – Spain. in Independent Water Vole (Mimomys Savini, Arvicola: Rodentia, Mammalia) Lineages In Italy And Central Europe
Text-fig. 13. Scatter diagram of m1 length vs SDQ for pre-Eemian (time slice 5) Arvicola samples from different geographical provenances compared with M. savini-A. mosbachensis and Arvicola sapidus. Empty dotted ovals indicate the range of extant Arvicola ex gr. amphibius samples from Italy (cyan) and from the other European locations (green) Abbreviations: FR – France, GE – Germany, IT – Italy, SP – Spain.
Text-fig. 11. Scatter diagram of m1 length vs SDQ for Würmian/Weichselian (time slice 3) Arvicola samples from different geographical provenances compared with M. savini-A. mosbachensis and extant Arvicola sapidus. Empty dotted ovals indicate the range of extant Arvicola ex gr. amphibius samples from Italy (cyan) and from the other European locations (green) Abbreviations: FR – France, GE – Germany, IT – Italy, SP – Spain. in Independent Water Vole (Mimomys Savini, Arvicola: Rodentia, Mammalia) Lineages In Italy And Central Europe
Text-fig. 11. Scatter diagram of m1 length vs SDQ for Würmian/Weichselian (time slice 3) Arvicola samples from different geographical provenances compared with M. savini-A. mosbachensis and extant Arvicola sapidus. Empty dotted ovals indicate the range of extant Arvicola ex gr. amphibius samples from Italy (cyan) and from the other European locations (green) Abbreviations: FR – France, GE – Germany, IT – Italy, SP – Spain.
Text-fig. 12. Scatter diagram of m1 length vs SDQ for Eemian (time slice 4) Arvicola samples from different geographical provenances compared with M. savini-A. mosbachensis and Arvicola sapidus. Empty dotted ovals indicate the range of extant Arvicola ex gr. amphibius samples from Italy (cyan) and from the other European locations (green) Abbreviations: FR – France, GE – Germany, IT – Italy, SP – Spain. in Independent Water Vole (Mimomys Savini, Arvicola: Rodentia, Mammalia) Lineages In Italy And Central Europe
Text-fig. 12. Scatter diagram of m1 length vs SDQ for Eemian (time slice 4) Arvicola samples from different geographical provenances compared with M. savini-A. mosbachensis and Arvicola sapidus. Empty dotted ovals indicate the range of extant Arvicola ex gr. amphibius samples from Italy (cyan) and from the other European locations (green) Abbreviations: FR – France, GE – Germany, IT – Italy, SP – Spain.
Text-fig. 10. Scatter diagram of m1 length vs SDQ for Extant (time slice 1 and 2) Arvicola samples of different geographical provenances compared with M. savini-A. mosbachensis. Abbreviations: EU – Europe, GE – Germany, IT – Italy, SP – Spain. in Independent Water Vole (Mimomys Savini, Arvicola: Rodentia, Mammalia) Lineages In Italy And Central Europe
Text-fig. 10. Scatter diagram of m1 length vs SDQ for Extant (time slice 1 and 2) Arvicola samples of different geographical provenances compared with M. savini-A. mosbachensis. Abbreviations: EU – Europe, GE – Germany, IT – Italy, SP – Spain.
Text-fig. 2. Developmental morphospace of molariform ratios in Lestodon armatus compared to the IC model. Dash-dot line (-.-), show OLS line; dash double-dot line (-..-) shows RMA line. in Unexpected Inhibitory Cascade In The Molariforms Of Sloths (Folivora, Xenarthra): A Case Study In Xenarthrans Honouring Gerhard Storch'S Open-Mindedness
Text-fig. 2. Developmental morphospace of molariform ratios in Lestodon armatus compared to the IC model. Dash-dot line (-.-), show OLS line; dash double-dot line (-..-) shows RMA line.
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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.