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Figure 8 in A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Figure 8. Skull, mandible, and postcranial remains of Dyrosaurus maghribensis sp. nov., OCP DEK-GE 253, Ypresian of Mera el Arech, Oulad Abdoun Basin, Morocco.

Figure 7 in A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Figure 7. Stereoscopic photograph of the occipital face of Dyrosaurus maghribensis sp. nov., OCP DEK-GE 263, Ypresian of Mera el Arech, Oulad Abdoun Basin, Morocco.

Figure 6 in A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Figure 6. Reconstruction of the skull and mandible of Dyrosaurus maghribensis sp. nov., Ypresian of the Oulad Abdoun Basin, Morocco, in lateral view.

Figure 5 in A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Figure 5. Reconstruction of the skull of Dyrosaurus maghribensis sp. nov., Ypresian of the Oulad Abdoun Basin, Morocco, in dorsal view. See Appendix 5, for explanation of abbreviations here and in Figures 6–17.

Figure 4 in A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Figure 4. Skull, cervical and dorsal vertebrae of Dyrosaurus maghribensis sp. nov., OCP DEK-GE 43, Ypresian of Daoui, in the Oulad Abdoun Basin, Morocco, in dorsal view.

Figure 2 in A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Figure 2. Dyrosaurus maghribensis sp. nov., Ypresian of Mera el Arech, in the Oulad Abdoun Basin, Morocco: A, skeleton of OCP DEK-GE 255, holotype; B, skeleton of OCP DEK-GE 252.

Figure 1 in A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Figure 1. Geographical position of the Oulad Abdoun and Algero-Tunisian Basins in which the two Dyrosaurus have been found. A, Geographical position of Morocco, Algeria, and Tunisia. B, Position of the Oulad Abdoun and Algero-Tunisian Basins on a simplified palaeogeographical reconstruction of the Basins during the early Eocene (Ypresian). Grey, sea; white, exposed land. [Modified from Furon, 1950; Arambourg, 1952; Sassi, 1974 (in Moody & Buffetaut, 1981); Herbig, 1986, 1991; Trappe, 1991; Meulenkamp et al., 2000.]

Figure 3 in A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Figure 3. Skull of Dyrosaurus maghribensis sp. nov., OCP DEK-GE 88, Ypresian of Daoui, Oulad Abdoun Basin, Morocco, in dorsolateral view.

Figure 9 in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 9. Character state distribution of podocopids on a phylogenetic tree proposed by Yamaguchi (2003). The families not shown in bold face were not examined in this study, and estimations of their eye types were mainly based on the figures and descriptions of the cuticular lens by Benson et al. (1961) and Van Morkhoven (1963).

Figure 7. A in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 7. A, measurements of the four types of podocopid species (LG1, LG2, MG, and HG) plotted on Figure 6. B, theoretical models of possible podocopid ostracod eyes accommodated in the morphospace.

Figure 4. The setting for the phototactic experiments. A in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 4. The setting for the phototactic experiments. A white fibre-optic illumination (150 W) from a halogen lamp was exposed to the podocopid ostracod at the distance of D and an angle of 45°.

Figure 3. A in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 3. A, cuticular lens–tapetum model: bold dots in the lens represent the centre of the arc described by the outer and inner surface of the lens; r1, the radius of curvature of the outer lens surface; r2, the radius of curvature of the inner surface; e1, the thickness of the lens; e2, the distance between the lens and the tapetum; d, the diameter of a spherical mirror. B, an example of the computer simulation of ray tracing: Lt, the sum of the total lengths of segments of rays passing through the rhabdom (shown by the grey segments); n, the total number of rays of incident light.

Figure 2 in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 2. Idealized cross-sections showing the two possible ultrastructures of the podocopid lateral ocellus viewed from the anterior side. A, the pigment cup connects with the cuticular lens by connective tissue. B, the pigment cup is buried in the calcified valve, and the lens cell is degenerate.

Figure 1. The podocopid ostracod Aurila kiritsubo Yajima, 1982 in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 1. The podocopid ostracod Aurila kiritsubo Yajima, 1982; the right valve with a close-up of the cuticular lens. Scale bar = 100 µm.

Figure 8 in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 8. The relationship between the total irradiance of the microhabitat (%) of each species (where the total irradiance at the sea surface is 100%) and the light-gathering ability of eyes (G).

Figure 11. A in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 11. A, the relationship between the relative valve thickness (Tv) and the relative thickness of the lens (E1): r, correlation coefficient; P, significance level of the correlation. B, plots of the standardized curvature of the outer lens surface (R1) against the relative height of the ridge (Hr).

Figure 5 in Functional morphology and light-gathering ability of podocopid ostracod eyes and the palaeontological implications

Figure 5. Nine selected three-dimensional contour diagrams showing the theoretical morphospace consisting of parameters R1, R2, and G. The z-axis represents the G value corresponding to each combination of R1 and R2, for E1 = 2.0, 1.0, and 0.05, and E2 = 0.3, 0.6, and 0.9. Selected theoretical models are given for the corresponding regions in the morphospace.

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Fig. 1 in Influence of spawning procedure on gametes fertilization success in Salminus hilarii Valenciennes, 1850 (Teleostei: Characidae): Implications for the conservation of this species

Fig. 1. Fertilization rates of Salminus hilarii for G1 (wild broodstock), G2 (domesticated broodstock), G3 (wild females, manually stripped) and G4 (domesticated females, manually stripped) at the Ponte Nova Fish Farm. Values (mean ± standard error of the mean) followed by different symbol are significantly different between experimental groups.

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Fig. 2 in Influence of spawning procedure on gametes fertilization success in Salminus hilarii Valenciennes, 1850 (Teleostei: Characidae): Implications for the conservation of this species

Fig. 2. Microscopic aspect of the ovaries and macroscopic aspect of Salminus hilarii larvae: a. micrograph of a mature ovary, showing the vitellogenic oocytes; b. micrograph of the ovary showing an atretic oocyte. Scale bars: (a) 300 m and (b) 100 m;