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2,583 results for “morphometrics”
Figure 5 in Objective identification of Lepidocyclina (Foraminifera) species from the Eocene of Cuba based on growth-invariant morphometric characters
Figure 5. Measurements in equatorial sections: A, spatulate chamberlet; B, arcuate chamberlet; C, nepiont.
Figure 3 in Objective identification of Lepidocyclina (Foraminifera) species from the Eocene of Cuba based on growth-invariant morphometric characters
Figure 3. Distribution of samples and assemblages LBF in Loma El Santo section, central Cuba (modified from Torres-Silva et al., 2019).
Figure 2 in Objective identification of Lepidocyclina (Foraminifera) species from the Eocene of Cuba based on growth-invariant morphometric characters
Figure 2. Distribution of the samples and LBF assemblages at Loma Candelaria section, western Cuba (modified from Torres-Silva et al., 2019).
Figure 4 in Objective identification of Lepidocyclina (Foraminifera) species from the Eocene of Cuba based on growth-invariant morphometric characters
Figure 4. Distribution of samples and LBF assemblages at Loma Viǵıa section, central Cuba (modified from Torres-Silva et al., 2019).
Figure 1. A in Objective identification of Lepidocyclina (Foraminifera) species from the Eocene of Cuba based on growth-invariant morphometric characters
Figure 1. A, schematic tectonic map of western and central Cuba (after Iturralde-Vinent, 1994) with locations of the stratigraphical sections and samples. B, stratigraphical relations of the Eocene units in western and central Cuba slightly modified from Garćıa-Delgado & Torres-Silva (1997). Stratigraphical ranges of the studied sections, A (98LC-1), B (LM-52), C (LM-23), D (P-559, P-562), E (CA-215), F (CA-216).
Figure 17. A–G in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 17. A–G, Operculinoides soldadensis Vaughan & Cole; A, Loma El Santo, CA-215-871; B, Loma Candelaria, 98LC-1-669; C– F, Norona; C, NOR-UN 24; D–F, NOR-UN 15/14; G, holotype, Trinidad. H, I, Palaeonummulites trinitatensis (Nutall); H, Loma Candelaria, 98LC-1ICT3; I, holotype of Operculinoides kugleri Vaughan & Cole, Trinidad. J, Operculinoides ocalanus (Cushman), Loma Jabaco, CA-4-724. A–D, G–J, A forms in equatorial section; E, A form in axial section; F, external view.
Figure 18. A, B, D–H in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 18. A, B, D–H, Heterostegina ocalana Cushman; A, Loma Viǵıa, CA-216-D1a; B, Norona, NOR-UN 15/14; D, Loma Viǵıa, CA-216-79; E, F, Loma Jabaco; E, LM-52-756; F, LM-52-752; G, H, Norona, NOR-UN 24. C, Heterostegina cubana Cizancourt, Loma candelaria, 98LC-1H-809. I, Heterostegina sp. indet., Loma Candelaria, 98LC-1H-808. A, B, A forms in axial section; C–G, I, A forms in equatorial section; H, external view.
Figure 14 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 14. Distribution of larger benthic foraminifera (LBF) in the Loma Viǵıa section, central Cuba.
Figure 12 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 12. Distribution of larger benthic foraminifera (LBF) in the Loma El Santo section, central Cuba.
Figure 11 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 11. Distribution of larger benthic foraminifera (LBF) in the Loma Candelaria section, western Cuba (modified from Torres-Silva et al. 2017).
Figure 15. Nummulites striatoreticulatus Rutten. A–C in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 15. Nummulites striatoreticulatus Rutten. A–C, Entronque de Herradura; A, 98LC-2-686; B, 98LC-2-687; C, 98LC-2-1a. D–F, Loma Candelaria; D, 98LC-1-660; E, 98LC-1-630; F, 98LC-1-806. G–K, La Esperanza; G, E-126-474; H, E-126-466; I, E-126-458; J, E-126-470, gaps in the septa between adjacent alar prolongations of the chambers; K, E-126-459; L, M, Loma El Santo; L, CA-215- 865; M, CA-215- 65. A, B, E, F, H, I, L and M are A forms in equatorial section; C, D, G and J are A forms in axial section.
Figure 13 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 13. Distribution of larger benthic foraminifera (LBF) in the Norona section, western Cuba (modified from Torres-Silva et al. 2017).
Figure 10 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 10. Distribution of larger benthic foraminifera (LBF) in the Entronque de Herradura section, western Cuba.
Figure 8 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 8. Palaeogeographical distribution of the Eocene nummulitid species found at the Cuban localities. Map adapted from Pindell (2009).
Figure 19 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 19. Discriminant analysis of nummulitid species, where the important discriminators are ranked along the discriminant functions. Orange arrows indicate possible source of morphological changes. A, discriminant analysis within Nummulites striatoreticulatus at localities 98LC-2, 98LC-2 and E-126. B, discriminant analysis within Operculinoides floridensis at localities 98 LC-1, CA-215 and CA-216. C, discriminant analysis within O. soldadensis at localities 98LC-1, CA-125 and NOR-UN.
Figure 7. A in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 7. A, schematic diagram showing the Eocene depositional environments in sections from western and central Cuba (modified from Cotton 2012). B, schematic diagram showing depth zonation of nummulitid species and larger benthic foraminifera (LBF) present in the Eocene section across the depositional gradient (modified from Beavington-Penney & Racey 2004).
Figure 4 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 4. Discriminant analysis of nummulitid species, where the important discriminators are ranked along the discriminant functions. A, discriminant analysis between Operculinoides and Palaeonummulites species; B, discriminant analysis within Nummulites striatoreticulatus from different localities; C, discriminant analysis within O. floridensis from different localities; D, discriminant analysis within O. soldadensis from different localities.
Figure 9 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 9. Distribution of larger benthic foraminifera (LBF) in the Angelita Quarry section, western Cuba.
Figure 6 in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 6. Stratigraphical ranges of the nummulitid species from the Cuban sections and their correlation with the standard planktonic zones. A, Pearson et al. (2006); B, Berggren et al. (1995); C, Martini (1971); D, Agnini et al. (2014).
Figure 5. Ordinations and discriminant analysis. A in Morphometric analysis of Eocene nummulitids in western and central Cuba: taxonomy, biostratigraphy and evolutionary trends
Figure 5. Ordinations and discriminant analysis. A, two-dimensional ordination of studied specimens; genera are separated by different shapes (squares = Operculinoides; polygons = Palaeonummulites; triangles = Heterostegina). B, three-dimensional ordination of the studied specimens emphasizes the variation in the third component, highlighting the differentiation between Heterostegina sp. indet. and Operculinoides. C, discriminant analysis of Heterostegina species and Operculinoides or Palaeonummulites species; parameters are sorted in order of their importance as discriminators.
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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