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4,462 results for “South America”
FIGURE. Ramalina dictyota. V in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE. Ramalina dictyota. V. Marcano et al. 7247 (VEN). Scale = 14.6 mm.
FIGURE. Ramalina rectangularis. V in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE. Ramalina rectangularis. V. Marcano et al. 7217 (MER). Scale = 16 mm.
FIGURE. Ramalina cumanensis. Sipman & O. Reyes 34456 (B). Scale= 10.5 mm. in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE. Ramalina cumanensis. Sipman & O. Reyes 34456 (B). Scale= 10.5 mm.
FIGURE. Ramalina caracasana. Vareschi 7759 in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE. Ramalina caracasana. Vareschi 7759 (VEN). Scale = 15 mm.
FIGURE. Ramalina tenaensis. Habit (holotype). Scale = 22.6 mm. in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE. Ramalina tenaensis. Habit (holotype). Scale = 22.6 mm.
FIGURE Ramalina subcalcarata. Habit (holotype). Scale = 12.6 mm. in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE Ramalina subcalcarata. Habit (holotype). Scale = 12.6 mm.
FIGURE. Ramalina paradisensis. A. Morales 315 in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE. Ramalina paradisensis. A. Morales 315 (VEN). Scale = 5 mm.
FIGURE 40 in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE 40. Ramalina venezuelensis. Habit (holotype). Scale = 7.13 mm.
FIGURE. Isidial structures in R. canaguensis var. canaguensis. Scale = 0.6 mm. in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE. Isidial structures in R. canaguensis var. canaguensis. Scale = 0.6 mm.
FIGURE 5. Ramalina morrocoyensis. A. Morales 316 in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE 5. Ramalina morrocoyensis. A. Morales 316 (VEN). Scale = 4.6 mm.
FIGURE 4 in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE 4. Ramalina maegdefraui. Habit (holotype). Scale = 8 mm.
FIGURE 4 in The genus Ramalina Acharius (Ascomycota, Lecanoromycetes, Ramalinaceae) in northern South America
FIGURE 4. Ramalina victoriana. Habit (holotype). Scale = 20 mm.
Fig. 3. Fish assemblage ordination resulting from a in Flow seasonality and fish assemblage in a tropical river, French Guiana, South America
Fig. 3. Fish assemblage ordination resulting from a CA analysis using species (a), family (b), trophic guild (c), and MOS (d) descriptors in the upstream site, Comté River. Bold text indicates the species, family, trophic guild or MOS which contributes most to axes. Dots = samples taken during high waters; triangles = samples taken during low waters. Numbers correspond to fish species in Table 1. Axis scales are indicated in the small box.
Fig. 1 in Brachyhypopomus draco, a new sexually dimorphic species of Neotropical electric fish from southern South America (Gymnotiformes: Hypopomidae)
Fig. 1. Holotype (MCP 41540, male, 137.3 mm LEA, above) and paratype (MCP 41537, female, 108.4 mm LEA, below) of Brachyhypopomus draco, from Parque Estadual de Itapuã, Rio Grande do Sul, Brazil.
Figure 25 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 25. Pelvic girdles of three anuran taxa. Rhinophrynus dorsalis (KU 69084) in (A) dorsal (B) ventral, and (C) lateral views. Eoxenopoides reuningi in (D, SAM K4604) dorsal and (E, SAM K9945) ventral views. Xenopus muelleri in (F, CPBA V 50) dorsal (G, CPBA V 50) ventral, and (H, CPBA V 50) lateral views. Numbers before the colon indicate the character and numbers after the colon indicate the character state. Cartilage is shown in grey and bone is shown in white. Not to scale.
Figure 13 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 13. Strict consensus of the three mostparsimonious trees obtained in the parsimony analysis based on 49 characters coded from adult osteology. Tree length = 93 steps; consistency index = 0.677, rescaled consistency index = 0.554. Trees were rooted using Ascaphus and Discoglossus. Capital letters designate nodes. Numbers in italics indicate bootstrap values based on 2000 replicates (branch and bound). Values of less than 50 are not considered. Plain numbers indicate Bremer decay indices calculated using NONA 2.0 (Goloboff, 1993).
Figure 9 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution
Figure 9. Dorsal view of the left foot of Llankibatrachus truebae (BAR 2364–1). The ends of Digits II–IV are not preserved. Dashed lines indicate reconstruction. Scale bar = 2 mm.
Figure 2 in Postcranial morphology of the extinct caviine rodent Microcavia criolloensis (late Pleistocene, South America)
Figure 2. Bivariate diagrams: A, upper and lower molar series length (range and mean) (statistical data of M. shiptoni, M. chapalmalensis, M. reigi and M. robusta from Quintana, 1996: 69); B, length and distal transverse width of metacarpal III (McIII); C, length and distal transverse width of metatarsal III (MtIII).
Figure 5. A–C in Postcranial morphology of the extinct caviine rodent Microcavia criolloensis (late Pleistocene, South America)
Figure 5. A–C, lateral view of digit III: A, Microcavia niata (JCT-1515) (inverted image from right); B, Microcavia criolloensis (BRA-3-355); C, Galea spixii (MN-34417) (inverted image from right). D, E, lateral view of digit V: D, Microcavia australis (MLP-DZV-26.VIII.01.21); E, Microcavia criolloensis (BRA-3-355). Abbreviations as in Figure 4.
Data from: An Early Oligocene age for the oldest known monkeys and rodents of South America
<p>The Santa Rosa fossil locality in eastern Perú produced the first Paleogene vertebrate fauna from the Amazon Basin, including the oldest known monkeys from South America. This diverse paleofauna was originally assigned an Eocene age, based largely on the stage of evolution of the site's caviomorph rodents and marsupials. Here we present new detrital zircon dates that indicate that the maximum composite age of Santa Rosa is 29.6±0.8 Ma (Lower Oligocene), although several zircons from Santa Rosa date to the Upper Oligocene. The first appearance datum for Caviomorpha in South America is purported to be the CTA-27 site in the Contamana region of Perú, which is hypothesized to be ~41 Ma (Middle Eocene) in age. However, the presence of the same caviomorph species and/or genera<i> </i>at both CTA-27 and at Santa Rosa is now difficult to reconcile with a >11 Myr age difference. To further test the Middle Eocene age estimate for CTA-27, we ran multiple Bayesian tip-dating analyses of Caviomorpha, treating the ages of all Paleogene species from Perú as unknown. These analyses produced mean age estimates for Santa Rosa that overlap with the maximum 29.6±0.8 Ma composite date provided by detrital zircons, but predict that CTA-27 is much younger than currently thought (~31-30 Ma). We conclude that the ~41 Ma age proposed for CTA-27 is incorrect and that there are currently no compelling Eocene records of either rodents or primates in the known fossil record of South America.</p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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