Globularia (Globularia) patula ( Lamarck, 1804 )
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publication ID |
https://doi.org/ 10.4202/app.2009.0084 |
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persistent identifier |
https://treatment.plazi.org/id/E8075B43-A57F-FFDA-3F06-F9C670CC2240 |
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treatment provided by |
Felipe |
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scientific name |
Globularia (Globularia) patula ( Lamarck, 1804 ) |
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Globularia (Globularia) patula ( Lamarck, 1804) View in CoL
Fig. 4G–L View Fig .
Stratigraphic and geographic range.—Middle Eocene, Lutetian–Bartonian (PB, HB).
Colour pattern description.—The pattern consists of four levels of residual colouration. The background is heterogeneous with two broad slightly fluorescent diffuse spiral stripes on the adapical and adbasal parts of the whorl ( Fig. 4I–L View Fig ). The apex is pale and there are one ( Fig. 4I–K View Fig ) or two ( Fig. 4G, H, L View Fig ) fluorescent sharply delineated spiral stripes superimposed on the background. These two straight fluorescent spiral stripes, superimposed on the dark median “stripe” of the background, are located near its adbasal margin and on its adapical margin. They do not become diffuse through ontogenesis. The adapical one is absent in the shells showing only one stripe ( Fig. 4I–K View Fig ).
Globularia (Globularia) semipatula ( Deshayes, 1864) Fig. 4M View Fig .
Stratigraphic and geographic range.—Late Palaeocene, Thanetian–Middle Eocene, Ypresian (Cuisian) (PB).
Colour pattern description.—This species shows three levels of residual colouration. The background is dark and homogeneous. The apex is pale and there are axial thin fluorescent zigzagging stripes ( Fig. 4M View Fig ). The axial thin stripes present a regular distribution. The zigzags occur along the whole height of the stripes and display variable amplitude. There is intraspecific variability in the number and density of the axial thin stripes. This residual colour pattern is very similar to those of Globularia (G.) splendida ( Deshayes, 1864) from the Ypresian of the Paris Basin ( Fig. 4N View Fig ) and Globularia (G.) patuloides (Cossmann, 1902) from the Bartonian of the Paris Basin ( Fig. 4O View Fig ).
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