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Chatangiella spectabilis
From Fensome et al., 2019:
Chatangiella spectabilis (Alberti, 1959b, p.99, pl.9, fig.78) Lentin and Williams, 1976, p.55. Emendation: Lebedeva in Ilyina et al., 1994, p.66, as Chatangiella spectabilis. Holotype: Alberti, 1959b, pl.9, fig.78. Originally Deflandrea,
subsequently Australiella, thirdly (and now) Chatangiella. Age: late Senonian.
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Original description, Alberti, 1959: Deflandrea spectabilis n. sp. (Taf. 9 Fig. 7-8) [translation pkb 2025]:
Holotype: The specimen preserved in preparation no. S/Sl and shown on plate 9, fig. 7.
Locus typicus: Borehole Serno (Brandenburg)
Stratum typicum: Upper “Senon”.
Diagnosis: Carapace flattened, its outline elongated pentagonal to almost rhombic. The epithecium, which is slightly larger than the mortgage, has a short apical horn that is offset, tapers towards the front and is blunted at the free end. Transverse furrow narrow, ± strongly deepened. Usually only a small, pointed antapical horn is present. With a delicate, rounded inner body. Shell membrane finely punctured.
Additions: A longitudinal furrow (longitudinal gap) is indicated on the mortgage in some specimens. What is striking is the delicate inner body, which hardly contrasts in color with the membrane of the shell and does not touch its outer edge. There is a hexagonal, rounded loophole under the apex. The edges of the transverse furrow are often formed by two interrupted ridges.
Differential diagnosis: Distinguished from the other species of the genus by the elongated angular outline of the carapace, the mortgage forming a high, inverted trapezoid and the very delicate inner body.
Dimensions of the holotype: length 104 μ, width 66 μ. In other specimens, the length varies between 86 μ and 110 μ, the width between 52 μ and 68 μ.
Source: 16 copies.
Occurrence: Campanian/Santonian from Blankenburg (Harz). Upper “Senon” of the Serno borehole (Brandenburg)
Chatangiella spectabilis (Alberti, 1959b, p.99, pl.9, fig.78) Lentin and Williams, 1976, p.55. Emendation: Lebedeva in Ilyina et al., 1994, p.66, as Chatangiella spectabilis. Holotype: Alberti, 1959b, pl.9, fig.78. Originally Deflandrea,
subsequently Australiella, thirdly (and now) Chatangiella. Age: late Senonian.
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Original description, Alberti, 1959: Deflandrea spectabilis n. sp. (Taf. 9 Fig. 7-8) [translation pkb 2025]:
Holotype: The specimen preserved in preparation no. S/Sl and shown on plate 9, fig. 7.
Locus typicus: Borehole Serno (Brandenburg)
Stratum typicum: Upper “Senon”.
Diagnosis: Carapace flattened, its outline elongated pentagonal to almost rhombic. The epithecium, which is slightly larger than the mortgage, has a short apical horn that is offset, tapers towards the front and is blunted at the free end. Transverse furrow narrow, ± strongly deepened. Usually only a small, pointed antapical horn is present. With a delicate, rounded inner body. Shell membrane finely punctured.
Additions: A longitudinal furrow (longitudinal gap) is indicated on the mortgage in some specimens. What is striking is the delicate inner body, which hardly contrasts in color with the membrane of the shell and does not touch its outer edge. There is a hexagonal, rounded loophole under the apex. The edges of the transverse furrow are often formed by two interrupted ridges.
Differential diagnosis: Distinguished from the other species of the genus by the elongated angular outline of the carapace, the mortgage forming a high, inverted trapezoid and the very delicate inner body.
Dimensions of the holotype: length 104 μ, width 66 μ. In other specimens, the length varies between 86 μ and 110 μ, the width between 52 μ and 68 μ.
Source: 16 copies.
Occurrence: Campanian/Santonian from Blankenburg (Harz). Upper “Senon” of the Serno borehole (Brandenburg)