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Impletosphaeridium kroemmelbeinii
Impletosphaeridium kroemmelbeinii Morgenroth, 1966
Orthographic correction made by Eaton, 1976.
Holotype: Morgenroth 1966a, Pl. 9 Fig. 5
Locus typicus: Katharinenhof Fehmarn.
Stratum typicum: Lower Eocene (?2).
Age: Early Eocene
Translation Morgenroth 1966a: GSC
Original diagnosis: Morgenroth 1966a, p. 34-35: Impletosphaeridium kr÷mmelbeini
The spherical, thin capsule has a smooth, structureless surface which is uniformly covered with numerous solid processes. These are extremely slender and split distally into many fine branches which are again split into long, widely spread (divergent), very slender branchlets, thus the processes seem to be tree-like and sometimes adjacent processes can be united irregularly by the branchlets. (The fine structure of the processes is only recognizable under oil immersion).
Remarks: A pylome has not been observed. The process length and capsule size are different in all specimens found.
Comparison: Impletosphaeridium kr÷melbeini reminds one in the form of its processes of Impletosphaeridium polyozon (Brosius); it differs, however, from this species:
1) Through its considerably smaller measurements
2) Through a much stronger splitting and branching out of the processes.
Measurements: Capsule diameter: 25 microns (22/28 microns), process length: 8-11 microns (8/14 microns)(15 measurements). Number of specimens examined: 15.
Orthographic correction made by Eaton, 1976.
Holotype: Morgenroth 1966a, Pl. 9 Fig. 5
Locus typicus: Katharinenhof Fehmarn.
Stratum typicum: Lower Eocene (?2).
Age: Early Eocene
Translation Morgenroth 1966a: GSC
Original diagnosis: Morgenroth 1966a, p. 34-35: Impletosphaeridium kr÷mmelbeini
The spherical, thin capsule has a smooth, structureless surface which is uniformly covered with numerous solid processes. These are extremely slender and split distally into many fine branches which are again split into long, widely spread (divergent), very slender branchlets, thus the processes seem to be tree-like and sometimes adjacent processes can be united irregularly by the branchlets. (The fine structure of the processes is only recognizable under oil immersion).
Remarks: A pylome has not been observed. The process length and capsule size are different in all specimens found.
Comparison: Impletosphaeridium kr÷melbeini reminds one in the form of its processes of Impletosphaeridium polyozon (Brosius); it differs, however, from this species:
1) Through its considerably smaller measurements
2) Through a much stronger splitting and branching out of the processes.
Measurements: Capsule diameter: 25 microns (22/28 microns), process length: 8-11 microns (8/14 microns)(15 measurements). Number of specimens examined: 15.