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915 results for “morphological evolution”
FIGURE 26. Anthalona gen. n in Separation of Anthalona gen.n. from Alona Baird, 1843 (Branchiopoda: Cladocera: Anomopoda): morphology and evolution of scraping stenothermic alonines
FIGURE 26. Anthalona gen. n. pictorial key (adult parthenogenetic females). General characters of the genus are shown on
FIGURE 30 in Separation of Anthalona gen.n. from Alona Baird, 1843 (Branchiopoda: Cladocera: Anomopoda): morphology and evolution of scraping stenothermic alonines
FIGURE 30. Distribution of type localities of available names (A) and species in Anthalona gen. n. (B) considered valid after this study. Only confirmed records are shown. Horizontal line in B delimits distribution of Anthalona to the north, at 40°N. The genus is common in the Southern Hemisphere; most records have been regarded as Alona verrucosa and should now be evaluated.
FIGURE 28 in Separation of Anthalona gen.n. from Alona Baird, 1843 (Branchiopoda: Cladocera: Anomopoda): morphology and evolution of scraping stenothermic alonines
FIGURE 28. Asian and African species of Anthalona gen. n., compared to Anthalona verrucosa (Sars, 1901). A. Anthalona verrucosa verrucosa (Sars, 1901), Lençóis Maranhenses, NE-Brazil, from culture, Leg. K. Van Damme. B. Anthalona obtusa n. sp., Borneo, Palangka Raya University Campus, Leg. H.J. Dumont. C. Anthalona harti harti n. ssp., Maun, Okavango Delta, Botswana, Leg. H.J. Dumont. D. Anthalona harti occidentalis n. ssp., Lake Télé, Mali, Leg. H.J. Dumont. E. Anthalona simplex n. sp. from Katanga, DR Congo, Leg. K. Martens. F. Anthalona mediterranea from Wadi Shawqah, Sharjah, UAE, raised from culture, Leg. K. Van Damme.
Fig. 16–18 in Species Paraphyly and Social Parasitism: Phylogenomics, Morphology, and Geography Clarify the Evolution of the Pseudomyrmex elongatulus Group (Hymenoptera:
Fig. 16–18. Pseudomyrmex elongatulus group, workers, full-face dorsal view of head (a) and lateral profile of body (b). 16, P. nimbus, holotype, Costa Rica (CASENT0863541); 17, P. salvini, syntype, Mexico (CASENT0902879); 18, P. veracruzensis, holotype, Mexico (CASENT0863542). Images from AntWeb (www. antweb.org); photographers Phil Ward (16, 18), Zach (Ziv) Lieberman (17).
Fig. 3 in Species Paraphyly and Social Parasitism: Phylogenomics, Morphology, and Geography Clarify the Evolution of the Pseudomyrmex elongatulus Group (Hymenoptera:
Fig. 3. Bivariate plots of measurements and indices concerned with eye size and petiole shape, in workers of P. apache (n = 17) and P. arcanus (n = 17). (a) PL/ LHT (petiole length/metatibia length) by HW (head width); (b) REL2 (eye length/head width) by PLI (petiole height/petiole length).
Fig. 13–15 in Species Paraphyly and Social Parasitism: Phylogenomics, Morphology, and Geography Clarify the Evolution of the Pseudomyrmex elongatulus Group (Hymenoptera:
Fig. 13–15. Pseudomyrmex elongatulus group, workers, full-face dorsal view of head (a), and lateral profile of body (b). 13, P. capillatus, holotype, Mexico (CASENT0863535); 14, P. exoratus, holotype worker, Mexico (CASENT0863539); 15, P. fasciatus, holotype, Costa Rica (CASENT0863540). Images from AntWeb (www.antweb.org); photographer Phil Ward.
Fig. 19–26 in Species Paraphyly and Social Parasitism: Phylogenomics, Morphology, and Geography Clarify the Evolution of the Pseudomyrmex elongatulus Group (Hymenoptera:
Fig. 19–26. Pseudomyrmex elongatulus group: distribution maps. 19, P. apache; 20, P. arcanus (circles), P. fasciatus (triangles); 21, P. championi; 22, P. capillatus (triangles), P. cognatus (circles); 23, P. elongatulus (circles), probable introduced populations (stars); 24, P. comitator (square), P. ereptor (triangle), P. exoratus (circles); 25, P. salvini; 26, P. nimbus (circles), P. veracruzensis (triangle).
Cranial functional specialisation for strength precedes morphological evolution in Oviraptorosauria
<p>This dataset contains 3D models (.stl), Hypermesh (.hm), and Abaqus (.odb and .rpt) files for finite element analysis on the crania of oviraptorosaurian theropod species <em>Incisivosaurus gautheri</em>, <em>Citipati osmolskae</em>, <em>Khaan mckennai</em>, and <em>Conchoraptor gracilis</em> supporting the paper ‘Cranial functional specialisation for strength precedes morphological evolution in Oviraptorosauria' published in <em>Communications Biology</em> [https://doi.org/10.1038/s42003-024-06137-1].</p> <p>[Unzipped total size 47.2GB]</p>
Supplementary material 2 from: Parasram N, Santana W, Vallès Y, Windsor AМ, Vallès H (2024) Morphological and molecular support for Amphithrax verrucosus (H. Milne Edwards, 1832) and Amphithrax aculeatus (Herbst, 1790) (Crustacea, Decapoda, Brachyura) as valid species. Zoosystematics and Evolution 100(1): 15-30. https://doi.org/10.3897/zse.100.109192
Specimens used in the molecular analysis of Windsor and Felder (2014), which were erroneously identified as Amphithrax aculeatus (Herbst, 1790)
Supplementary material 4 from: Vanegas-Ríos JA, Serra Alanís WS, Azpelicueta MM, Litz T, Malabarba LR (2024) Population variation of Diapoma pampeana (Characiformes, Characidae, Stevardiinae) from an isolated coastal drainage in Uruguay, with new records: comparing morphological and molecular data. Zoosystematics and Evolution 100(1): 69-85. https://doi.org/10.3897/zse.100.112778
Cluster analysis (Ward's method) of size-corrected morphometric data of analyzed specimens of Diapoma pampeana
FIGURE 5 in A new Potamocypridini genus of Cypridopsinae (Crustacea, Ostracoda) from Thailand, with a discussion on taxonomic characters and morphological evolution in the tribe
FIGURE 5. Neopotamocypris indivisa gen. nov. sp. nov. A. T2 (MSU-ZOC.405). B. T3 (MSU-ZOC.405). C. Terminal part of T3 (MSU-ZOC.405). D. CR (MSU-ZOC.409). E. Female genital hook (MSU-ZOC.409). Scale bars: A–B, D = 50 µm, C, E = 20 µm
FIGURE 2 in A new Potamocypridini genus of Cypridopsinae (Crustacea, Ostracoda) from Thailand, with a discussion on taxonomic characters and morphological evolution in the tribe
FIGURE 2. Neopotamocypris indivisa gen. nov. sp. nov. (MSU-ZOC.409). A. Detail of the posterior part of LVi. B. Detail of the anterior part of LVi. C. Detail of the anterior part of RVi. D. Detail of the posterior part of RVi. Scale bars: A–D = 50 µm.
FIGURE 4 in A new Potamocypridini genus of Cypridopsinae (Crustacea, Ostracoda) from Thailand, with a discussion on taxonomic characters and morphological evolution in the tribe
FIGURE 4. Neopotamocypris indivisa gen. nov. sp. nov. A. Md palp (MSU-ZOC.405). B. Detail of α, β and γ setae (MSUZOC.405). C. Ventral subapical seta, S1 and S2 setae (MSU-ZOC.405). D. Mx1 (MSU-ZOC.405). E. Lateral subapical seta on basal segment of the palp (MSU-ZOC.405). F. Third endite with lateral subapical setae (MSU-ZOC.406). G. T1 (MSUZOC.406). Scale bars: A–F = 20 µm, G = 50 µm.
FIGURE 3 in A new Potamocypridini genus of Cypridopsinae (Crustacea, Ostracoda) from Thailand, with a discussion on taxonomic characters and morphological evolution in the tribe
FIGURE 3. Neopotamocypris indivisa gen. nov. sp. nov. A. A1 (MSU-ZOC.405). B. A2 (MSU-ZOC.405). C. Aesthetasc Y of A2 (MSU-ZOC.405). D. Md coxa (MSU-ZOC.406). E. Rake-like organ ((MSU-ZOC.409). Scale bars: A–B, D = 50 µm, C = 20 µm.
FIGURE 6 in A new Potamocypridini genus of Cypridopsinae (Crustacea, Ostracoda) from Thailand, with a discussion on taxonomic characters and morphological evolution in the tribe
FIGURE 6. Distribution map of Neopotamocypris indivisa gen. nov. sp. nov., numbers see Table 1. (Modified from NordNordWest, Thailand adm location map.svg - https://commons.wikimedia.org/wiki/File:BlankMap-Thailand-provinces. svg)
FIGURE 1 in A new Potamocypridini genus of Cypridopsinae (Crustacea, Ostracoda) from Thailand, with a discussion on taxonomic characters and morphological evolution in the tribe
FIGURE 1. Neopotamocypris indivisa gen. nov. sp. nov. A. CpL from left side (MSU-ZOC.412). B. CpD (MSU-ZOC.411). C. Detail of surface of LVe (MSU-ZOC.412). D. LVi (MSU-ZOC.409). E. RVi (MSU-ZOC.409). F. Detail of muscle scars of RVi (MSU-ZOC.409). Scale bars: A–B, E–F = 100 µm, C = 10 µm, D = 20 µm.
Controls of Grain Breakage on Shear Band Morphology and Permeability Evolution in Fault Gouges
<p>The simulations are designed and run within the software platform PFC (https://www.itascacg.com/software/PFC). The data set is composed of results of two-dimensional (2D) Discrete Element Method (DEM) modeling performed by Li et al., with the licensed commercial <em>Particle Flow Code </em>2D version 6.0 (PFC2D 6.0) from Itasca Consulting Group, Ltd. </p>
Figure 4 in Evolution of sperm morphology in potamid freshwater crabs (Crustacea: Brachyura: Potamoidea)
Figure 4. Diagrammatic drawings of potamine spermatozoa. A, Parathelphusula panningi (with cleistospermic spermatophore wall). B, Himalayapotamon emphysetum (with cleistospermic spermatophore wall). C, Socotrapotamon socotrense. Scale bars: 1 Mm.
Figure 3 in Evolution of sperm morphology in potamid freshwater crabs (Crustacea: Brachyura: Potamoidea)
Figure 3. Transmission electron microscopy (TEM) of potamid spermatozoa. A, B, Parathelphusula panningi. A, longitudinal sagittal view. B, cross section. C–F, Himalayapotamon emphysetum. C, longitudinal sagittal view; the arrowhead indicates the perforate operculum. D, 'tongue-and-groove' connection between the operculum and the acrosomal zones beneath. E, overview of cleistospermic spermatophores. F, cross section. Scale bars: 1 Mm, or as indicated. Abbreviations: arrowhead, vestigial 'tongue & groove connection'; ar, acrosome ray zone; ia, inner acrosomal zone; nu, nucleus; oa, outer acrosomal zone; op, operculum; pc, perforatorial chamber; tg, 'tongue-and-groove' connection; sw, spermatophore wall.
Figure 2 in Evolution of sperm morphology in potamid freshwater crabs (Crustacea: Brachyura: Potamoidea)
Figure 2. Maximum clade credibility tree based on Bayesian inference (BEAST 1.4.8) of a 16S rRNA fragment (523 bp) including potamid species with known sperm ultrastructure and Gecarcinucidae as the out-group. The nomenclature of subclades is as suggested by Shih et al. (2009). European Molecular Biology Laboratory (EMBL) accession numbers of sequences obtained in this study are shown in bold.
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International Brain Laboratory public data
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OpenNeuro
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