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Batiacasphaera capitata
Batiacasphaera capitata, (Cookson and Eisenack, 1960), Dörhöfer and Davies 1980
NOW Barbatacysta. Originally Hystrichosphaeridium, subsequently Prolixosphaeridium, thirdly Tenua Eisenack, fourthly Batiacasphaera, fifthly (and now) Barbatacysta. (Lentin and Williams, 1981, retained this species in Prolixosphaeridium Davey et al., 1966.)
Holotype: Cookson and Eisenack, 1960b, pl.39, fig.9; Fauconnier and Masure, 2004, pl.66, fig.1
Locus typicus: SSW of Broome, Canning Basin, Australia
Stratum typicum: Oxfordian-Kimmeridgian
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Original description as Hystrichsphaeridium capitatum: [Cookson and Eisenack, 1960, p. 252]:
Description:
Shell cylindrical with rounded ends, densely covered with short, solid appendages with capitate or somewhat bifurcate ends and an opening by the complete detachment of one end of the shell.
Dimensions:
Holotype: 64 µm long, 42 µm broad, overall 72x50 µm. Range of shell 64-66x28-44 µm.
Affinities:
H. capitatum seems distinct from all described species of Hystrichosphaeridium with elongate shells; the appendages show some similarity to those of H. intermedia? O.Wetzel.
NOW Barbatacysta. Originally Hystrichosphaeridium, subsequently Prolixosphaeridium, thirdly Tenua Eisenack, fourthly Batiacasphaera, fifthly (and now) Barbatacysta. (Lentin and Williams, 1981, retained this species in Prolixosphaeridium Davey et al., 1966.)
Holotype: Cookson and Eisenack, 1960b, pl.39, fig.9; Fauconnier and Masure, 2004, pl.66, fig.1
Locus typicus: SSW of Broome, Canning Basin, Australia
Stratum typicum: Oxfordian-Kimmeridgian
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description as Hystrichsphaeridium capitatum: [Cookson and Eisenack, 1960, p. 252]:
Description:
Shell cylindrical with rounded ends, densely covered with short, solid appendages with capitate or somewhat bifurcate ends and an opening by the complete detachment of one end of the shell.
Dimensions:
Holotype: 64 µm long, 42 µm broad, overall 72x50 µm. Range of shell 64-66x28-44 µm.
Affinities:
H. capitatum seems distinct from all described species of Hystrichosphaeridium with elongate shells; the appendages show some similarity to those of H. intermedia? O.Wetzel.