Lanternosphaeridium cinctum Cookson and Eisenack, 1982

Now Fibrocysta?. Originally Lanternosphaeridium, subsequently (and now) Fibrocysta?.

Holotype: Cookson and Eisenack, 1982, pl.2, fig.22
Age: Albian-Cenomanian

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Original description: [Cookson and Eisenack, 1982] (translated from German):

Lanternosphaeridium cinctum n. sp.
Plate 2, Fig. 22

Type: The specimen shown on Plate 2, Fig. 22, preserved in the Balcatta specimen, 570 ft. (B XI).
Diagnosis: A pear-shaped Lanternosphaeridium species, divided by a horizontal belt (cingulum). The epitract is slightly longer than the hypotract, both fairly densely covered with roughly parallel, somewhat fibrous processes. One of these processes is apical, forming what appears to be an apical horn. The processes are shorter on the epitract than on the hypotract, and are longest in the antapical region.
Material and dimensions: One specimen; shell approx. 78 x 52 μ, overall approx. 108 x 78 μ, appendages on the antapex up to 18 μ.
Note: L. cinctum is the only species of the genus to have a belt.
Occurrence: In the Balcatta Bore at 570 ft.