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Homotryblium oceanicum
Homotryblium oceanicum Eaton, 1976
Holotype: Eaton, 1976, pl.10, fig.5; Bujak et al., 1980, pl.1, figs.10-12
Locus typicus: Bracklesham Beds, Alum Bay, Isle of Wight, England.
Stratum typicum: Middle-Late Eocene
Original diagnosis: Eaton, 1976, p. 268
Cyst body subspherical or spherical with a granular surface. Processes long, broad and cylindrical, and individually relatively constant in breadth, showing little distal expansion. Distal margin denticulate, secate or aculeate. Processes intratabular, one per reflected plate area. Reflected tabulation of the form 3", 6", 6c, 5""", 1""""; archaeopyle epitractal.
Dimensions: Holotype: diameter of cyst body 49 Ám; processes, length up to 28 Ám, breadth up to 10 Ám. Observed range: diameter of cyst body 36-50 Ám; processes, length up to 30 Ám, breadth up to 16 Ám. (n = I2).
Affinities:
Eaton, 1976, p. 268: The majority of the studied specimens are incomplete; no sulcal processes have been observed. In some specimens there is a proximal circle where the processes diverge from the cyst body. The distinctive long broad cylindrical processes, individually relatively constant in breadth, distinguish H. oceanicum from all described species of Homotryblium.
Holotype: Eaton, 1976, pl.10, fig.5; Bujak et al., 1980, pl.1, figs.10-12
Locus typicus: Bracklesham Beds, Alum Bay, Isle of Wight, England.
Stratum typicum: Middle-Late Eocene
Original diagnosis: Eaton, 1976, p. 268
Cyst body subspherical or spherical with a granular surface. Processes long, broad and cylindrical, and individually relatively constant in breadth, showing little distal expansion. Distal margin denticulate, secate or aculeate. Processes intratabular, one per reflected plate area. Reflected tabulation of the form 3", 6", 6c, 5""", 1""""; archaeopyle epitractal.
Dimensions: Holotype: diameter of cyst body 49 Ám; processes, length up to 28 Ám, breadth up to 10 Ám. Observed range: diameter of cyst body 36-50 Ám; processes, length up to 30 Ám, breadth up to 16 Ám. (n = I2).
Affinities:
Eaton, 1976, p. 268: The majority of the studied specimens are incomplete; no sulcal processes have been observed. In some specimens there is a proximal circle where the processes diverge from the cyst body. The distinctive long broad cylindrical processes, individually relatively constant in breadth, distinguish H. oceanicum from all described species of Homotryblium.