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390 results for “Character Analysis”
Fig. 7 in First Mesozoic record of the stingray Myliobatis wurnoensis from Mali and a phylogenetic analysis of Myliobatidae incorporating dental characters
Fig. 7. Comparative extant taxa of Myliobatidae. A, B, D. Articulated jaws and tooth rows. C. Disarticulated jaws and articulated tooth rows. E–G. Articulated tooth rows. A. Raja sp., AMNH 92321b, in labial view. B. Dasyatis sp., FMNH 15625, in labial view. C. Rhinoptera quadriloba (LeSueur, 1817), FMNH 82986, in occlusal view. D. Myliobatis californica Gill, 1865, MCZ 424, in lingual view. E. Mobula hypostoma (Bancroft, 1831), AMNH 44124, in occlusal view, photograph (E1), line drawing (E2); F. Mobula rochebruni (Vaillant, 1879), FMNH 38450, in occlusal view, photograph (F1), line drawing (F2). G. Manta hamiltoni (Walbaum, 1792), FMNH 41385, in occlusal view, photograph (G1), line drawing (G2). H. Aetobatus narinari (Euphrasen, 1790), FMNH 10985, in labial view.
Linked collectors and determiners for: Phylogenetic analysis of the Belostoma plebejum group sensu Nieser (Insecta, Hemiptera, Belostomatidae): the effect of adding continuous characters on its accuracy.
Natural history specimen data linked to collectors and determiners held within, "Phylogenetic analysis of the Belostoma plebejum group sensu Nieser (Insecta, Hemiptera, Belostomatidae): the effect of adding continuous characters on its accuracy". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/0367aa61-0794-47f5-84b8-8abde5050c40">https://bionomia.net/dataset/0367aa61-0794-47f5-84b8-8abde5050c40</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/0367aa61-0794-47f5-84b8-8abde5050c40">https://gbif.org/dataset/0367aa61-0794-47f5-84b8-8abde5050c40</a>. Formatted as a Frictionless Data package.
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. 7. Plot of discriminant scores (R1/R2) of individual M1 of Apodemus spp. from particular Pleistocene biozones superimposed onto a plot of variation ranges for the respective variables for the Recent Apodemus sample (based on the discrimination analysis of total set of characters, both metric and non-metric). in Genus Apodemus In The Pleistocene Of Central Europe: When Did The Extant Taxa Appear?
Text-fig. 7. Plot of discriminant scores (R1/R2) of individual M1 of Apodemus spp. from particular Pleistocene biozones superimposed onto a plot of variation ranges for the respective variables for the Recent Apodemus sample (based on the discrimination analysis of total set of characters, both metric and non-metric).
Text-fig. 10. Phylogenetic relationships of Miocene hyaenodonts (for definitions of character states see Table 2). The data matrix was compiled in MacClade 4.05 and run in PAUP 4.0b10 (Macintosh version). We chose Cimolestes magnus CLEMENS et RUSSELL, 1965, (additional data from Lillegraven 1969), as the outgroup. The unordered and unweighted analysis produced 16 trees. a: Majority-rule consensus. b: Strict consensus. Consistency index (CI): 0.5882; Homoplasy index (HI): 0.4118; Retention index (RI): 0.7742. in New Hyaenodonts (Ferae, Mammalia) From The Early Miocene Of Napak (Uganda), Koru (Kenya) And Grillental (Namibia)
Text-fig. 10. Phylogenetic relationships of Miocene hyaenodonts (for definitions of character states see Table 2). The data matrix was compiled in MacClade 4.05 and run in PAUP 4.0b10 (Macintosh version). We chose Cimolestes magnus CLEMENS et RUSSELL, 1965, (additional data from Lillegraven 1969), as the outgroup. The unordered and unweighted analysis produced 16 trees. a: Majority-rule consensus. b: Strict consensus. Consistency index (CI): 0.5882; Homoplasy index (HI): 0.4118; Retention index (RI): 0.7742.
Figure 3 in A phylogenetic analysis of the arachnid orders based on morphological characters
Figure 3. Consensus trees produced by parsimony analysis of neontological data constrained to produce relationships proposed in the recent literature. The constrained (target) node is indicated by a black dot and the taxa encompassed by the constraint are enclosed in a box. Numbers below each tree represent the number of minimal-length constrained trees, length of minimal-length trees, difference in the length of the unconstrained minimal-length tree and the constrained minimal-length tree, and percentage unconstrained bootstrap trees in which the target node was recovered, respectively. These trees indicate the effect on branch length imposed by specific hypotheses and impact of constraining target nodes on nontarget nodes.
Figure 6 in A phylogenetic analysis of the arachnid orders based on morphological characters
Figure 6. Results from analysis of the full data matrix. A, minimal-length topology. Numbers below internodes are bootstrap percentages/Bremer support values. B, parsimony tree produced by implied weights with k = 1. C, parsimony tree produced by implied weights with k = 2. Parsimony trees produced by implied weights with k = 3–6 are identical to topology C. For B and C, relationships within terminal clades are the same as those shown in A.
Figure 5 in A phylogenetic analysis of the arachnid orders based on morphological characters
Figure 5. Results from analysis of neontological data. A, minimal-length topology. Numbers below internodes are bootstrap percentages/Bremer support values. B, parsimony tree produced by implied weights with k = 1. C, parsimony tree produced by implied weights with k = 2. Parsimony trees produced by implied weights with k = 3–6 are identical to topology A. For B and C, relationships within terminal clades are the same as those shown in A.
Figure 4 in A phylogenetic analysis of the arachnid orders based on morphological characters
Figure 4. Consensus trees produced by parsimony analysis of the full data matrix constrained to produce relationships proposed in the recent literature. See legend to Figure 3 for details.
Figure 2 in A phylogenetic analysis of the arachnid orders based on morphological characters
Figure 2. Fully resolved phylogenetic hypotheses of extant euchelicerate groups proposed in the recent literature. Note the similarity in the topologies of the parsimony-based analyses by Shultz (1990), Wheeler & Hayashi (1998) and Giribet et al. (2002). The Giribet et al. topology is based on neontological data (morphology and molecules) and the original 'ROOT' may be an artefact from use of the highly divergent pycnogonids as an outgroup.
Figure 1 in A phylogenetic analysis of the arachnid orders based on morphological characters
Figure 1. Cladogram summarizing results from analysis of major euchelicerate lineages generated by parsimony analysis of 59 genera and 202 non-molecular characters. Only those relationships that were well supported by bootstrap analysis or consistently recovered in sensitivity analysis are depicted; deepest relationships within Arachnida are effectively unresolved.
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International Brain Laboratory public data
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