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Callaiosphaeridium asymmetricum ssp. latum
Callaiosphaeridium asymmetricum ssp. latum, Heilmann-Clausen and Thomsen 1995
Holotype: Heilmann-Clausen and Thomsen 1995: Pl. 14, fig. 3; Text-fig. 13
Paratype: Heilmann-Clausen and Thomsen 1995: Pl. 14, fig. 4
Type locality: Ahlum 1 borehole.
Type stratum: Core depth 240 m, Lower Barremian.
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Original description: [Heilmann-Clausen and Thomsen, 1995, p. 290-291]:
Diagnosis:
This is a subspecies of Callaiosphaeridium asymmetricum in which the proximal part of the paracingular processes are laterally much expanded, so as to coalesce with the neighbouring paracingular processes. A septum-like, hollow structure thus occupies the entire paracingulum.
Dimensions:
of holotype: Central body breadth 37 µm, dorso-ventral diameter 38 µm. Pericyst breadth 77 µm, dorso-ventral diameter 78 µm.
of measured specimens: Central body breadth: 35 (40) 44 µm. Central body dorso-ventral diameter: 34 (38) 42 µm. Pericyst breadth: 73 (84) 98 µm. Pericyst dorso-ventral diameter: 66 (80) 95 µm. (8 specimens measured)
Holotype: Heilmann-Clausen and Thomsen 1995: Pl. 14, fig. 3; Text-fig. 13
Paratype: Heilmann-Clausen and Thomsen 1995: Pl. 14, fig. 4
Type locality: Ahlum 1 borehole.
Type stratum: Core depth 240 m, Lower Barremian.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Heilmann-Clausen and Thomsen, 1995, p. 290-291]:
Diagnosis:
This is a subspecies of Callaiosphaeridium asymmetricum in which the proximal part of the paracingular processes are laterally much expanded, so as to coalesce with the neighbouring paracingular processes. A septum-like, hollow structure thus occupies the entire paracingulum.
Dimensions:
of holotype: Central body breadth 37 µm, dorso-ventral diameter 38 µm. Pericyst breadth 77 µm, dorso-ventral diameter 78 µm.
of measured specimens: Central body breadth: 35 (40) 44 µm. Central body dorso-ventral diameter: 34 (38) 42 µm. Pericyst breadth: 73 (84) 98 µm. Pericyst dorso-ventral diameter: 66 (80) 95 µm. (8 specimens measured)