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Fibrocysta vectensis ssp. cymosapicis
Fibrocysta vectensis ssp. cymosapicis Islam, 1983
Holotype: Islam, 1983, pl.3, fig.7
Age: Middle Eocene
(Islam, 1983):
Lanternosphaeridium sp. 2 Gocht, 1969, p. 50, text-fig. 36. Early Eocene.
Derivation of name : L. cymosus – Full of shoots; apices – Top, apex; refers to its variously branched apical horn.
Diagnosis: Autocyst ellipsoidal, strongly fibroreticulate and between 1 and 2 µm in thickness; possesses many nontabular stout, solid fibrous processes and precingular Type P archeopyle; resembles F. vectensis (Eaton) Stover & Evitt 1978 except in apical horn, - shortest is F. vectensis but very prominent, broad, bearing variable branches along its length and longest of all processes in F. vectensis subsp. Cymosapicis n. ssp.; all processes distally branched and/or wide and aculeate, some processes proximally joined by fibrous crests.
Holotype: Slide C1745(2), V29.3; Middle bagshot member, Middle Eocene, Shapley heath. Paratype. Slide C1745(4), H44.2.
Dimensions: Holotype: cyst body 62x48 µm, length of apical horn 31 µm, antapical horn 27 µm, and other processes 17-29 µm. Paratype: cyst body 54x52 µm, length of apical horn 29 µm, antapical horn 29 µm, and other processes 16-20 µm.
Occurrence: Shapley Heath: C1744-C1745.
Remarks: This subspecies resembles F. axialis (Eisenack) Stover & Evitt 1978 but differs in being more strongly fibrous and possessing stout and frequently broader processes by which it resembles F. vectensis, differing only in the apical prominence.
Holotype: Islam, 1983, pl.3, fig.7
Age: Middle Eocene
(Islam, 1983):
Lanternosphaeridium sp. 2 Gocht, 1969, p. 50, text-fig. 36. Early Eocene.
Derivation of name : L. cymosus – Full of shoots; apices – Top, apex; refers to its variously branched apical horn.
Diagnosis: Autocyst ellipsoidal, strongly fibroreticulate and between 1 and 2 µm in thickness; possesses many nontabular stout, solid fibrous processes and precingular Type P archeopyle; resembles F. vectensis (Eaton) Stover & Evitt 1978 except in apical horn, - shortest is F. vectensis but very prominent, broad, bearing variable branches along its length and longest of all processes in F. vectensis subsp. Cymosapicis n. ssp.; all processes distally branched and/or wide and aculeate, some processes proximally joined by fibrous crests.
Holotype: Slide C1745(2), V29.3; Middle bagshot member, Middle Eocene, Shapley heath. Paratype. Slide C1745(4), H44.2.
Dimensions: Holotype: cyst body 62x48 µm, length of apical horn 31 µm, antapical horn 27 µm, and other processes 17-29 µm. Paratype: cyst body 54x52 µm, length of apical horn 29 µm, antapical horn 29 µm, and other processes 16-20 µm.
Occurrence: Shapley Heath: C1744-C1745.
Remarks: This subspecies resembles F. axialis (Eisenack) Stover & Evitt 1978 but differs in being more strongly fibrous and possessing stout and frequently broader processes by which it resembles F. vectensis, differing only in the apical prominence.