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Tanyosphaeridium toryna
Tanyosphaeridium torynum (Cookson and Eisenack, 1960) Stover and Evitt, 1978
Now Egmontodinium. Originally Hystrichosphaeridium, subsequently Prolixosphaeridium?, thirdly Tanyosphaeridium, fourthly (and now) Egmontodinium.
Holotype: Cookson and Eisenack, 1960, pl. 38, fig. 15
Locus typicus: Broome Nr. 1 Bore, NW Western Australia
Stratum typcium: Tithonian-Neocomian
Original description: Cookson and Eisenack, 1960, p. 252: Hystrichosphaeridium torynum
Shell cylindrical with rounded ends and numerous short and apparently solid appendages of variable shape and size which are arranged in more or less well-defined whorls around the circumference. The appendages are either narrow and simple with capitate ends or flattened and terminally branched. The opening of the shell appears to have been terminal (Pl. 38, fig. 6).
Dimensions: holotype-shell 68 µm long, 33 µm broad; overall 81-56 µm. Appendages c. 10 µm long. Range of shell 64-78 µm x 32-38 µm.
Now Egmontodinium. Originally Hystrichosphaeridium, subsequently Prolixosphaeridium?, thirdly Tanyosphaeridium, fourthly (and now) Egmontodinium.
Holotype: Cookson and Eisenack, 1960, pl. 38, fig. 15
Locus typicus: Broome Nr. 1 Bore, NW Western Australia
Stratum typcium: Tithonian-Neocomian
Original description: Cookson and Eisenack, 1960, p. 252: Hystrichosphaeridium torynum
Shell cylindrical with rounded ends and numerous short and apparently solid appendages of variable shape and size which are arranged in more or less well-defined whorls around the circumference. The appendages are either narrow and simple with capitate ends or flattened and terminally branched. The opening of the shell appears to have been terminal (Pl. 38, fig. 6).
Dimensions: holotype-shell 68 µm long, 33 µm broad; overall 81-56 µm. Appendages c. 10 µm long. Range of shell 64-78 µm x 32-38 µm.