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Surculosphaeridium stella
Surculosphaeridium stella (Wetzel, 1952, p.403, pl.A, fig.4; text-fig.23) Fauconnier in Fauconnier and Masure (2004, p.519). Emendation: Sarjeant, 1984c, p.135, as Surculosphaeridium phoenix subsp. stella.
Originally Hystrichosphaeridium oligacanthum subsp. stella, subsequently Baltisphaeridium oligacanthum subsp. stella (acritarch), thirdly Cleistosphaeridium? oligacanthum subsp. stella, fourthly Surculosphaeridium? phoenix subsp. stella, fifthly (and now) Surculosphaeridium? stella. Questionable assignment: Fauconnier and Pourtoy in Fauconnier and Masure (2004, p.519) as a problematic species. N.I.A.
Holotype: Wetzel, 1952, pl.A, fig.4; Dietz et al. 1999, text-fig.6f.
Age: Paleocene.
Original Diagnosis: W. Wetzel, 1952, p. 403
"Principal characteristics . .. are relatively stately dimensions, thick-walled capsule and processes which produce only insignificant, narrow tubes distally [and] which, as a result of their "softness" [lack of rigidity] may be bent into curves. The number of processes may vary considerably, but is perhaps in most cases to be denoted as moderate. Curvature of the processes is common, but not regular".
Originally Hystrichosphaeridium oligacanthum subsp. stella, subsequently Baltisphaeridium oligacanthum subsp. stella (acritarch), thirdly Cleistosphaeridium? oligacanthum subsp. stella, fourthly Surculosphaeridium? phoenix subsp. stella, fifthly (and now) Surculosphaeridium? stella. Questionable assignment: Fauconnier and Pourtoy in Fauconnier and Masure (2004, p.519) as a problematic species. N.I.A.
Holotype: Wetzel, 1952, pl.A, fig.4; Dietz et al. 1999, text-fig.6f.
Age: Paleocene.
Original Diagnosis: W. Wetzel, 1952, p. 403
"Principal characteristics . .. are relatively stately dimensions, thick-walled capsule and processes which produce only insignificant, narrow tubes distally [and] which, as a result of their "softness" [lack of rigidity] may be bent into curves. The number of processes may vary considerably, but is perhaps in most cases to be denoted as moderate. Curvature of the processes is common, but not regular".