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Lanternosphaeridium ovale
Lanternosphaeridium ovale Hansen, 1977
Now Fibrocysta. Originally Lanternosphaeridium, subsequently (and now) Fibrocysta.
Holotyp: Hansen, 1977, figs.19F,G
Locus typicus: Tuba 13 well, Copenhagen, Denmark
Stratum typicum: Maastrichian-Danian
Original diagnosis: Hansen, 1977, p. 17
Lanternosphaeridiu Morgenroth, 1967 with an oval central body and with a variable number of similar processes.
Description: Hansen, 1977, p. 17
The oval central body consists of an inner, seemingly structureless layer (endophragm) and an outer very finely fibrous layer (periphragm). Processes intratabular, solid, circular in cross-section and formed by numerous hardly visible coalescent fibres. More than one process per plate area. There is a tendency to a circular arrangement of the processes in the cingular region. Archaeopyle type P. Operculum becomes typically completely detached.
Now Fibrocysta. Originally Lanternosphaeridium, subsequently (and now) Fibrocysta.
Holotyp: Hansen, 1977, figs.19F,G
Locus typicus: Tuba 13 well, Copenhagen, Denmark
Stratum typicum: Maastrichian-Danian
Original diagnosis: Hansen, 1977, p. 17
Lanternosphaeridiu Morgenroth, 1967 with an oval central body and with a variable number of similar processes.
Description: Hansen, 1977, p. 17
The oval central body consists of an inner, seemingly structureless layer (endophragm) and an outer very finely fibrous layer (periphragm). Processes intratabular, solid, circular in cross-section and formed by numerous hardly visible coalescent fibres. More than one process per plate area. There is a tendency to a circular arrangement of the processes in the cingular region. Archaeopyle type P. Operculum becomes typically completely detached.