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Turbiosphaera sarrisii
From Fensome et al., 2019:
Turbiosphaera sarrisii (Archangelsky, 1969a, p.411, pl.2, figs.5–7) Fensome et al., 2019a, p.55.
Holotype: Archangelsky, 1969a, pl.2, figs.6–7; Fensome et al., 2019a, figs.20E–F.
Originally Polystephanephorus?, subsequently Senoniasphaera?, thirdly (and now) Turbiosphaera.
Questionable assignment: Fensome et al. (2019a. p.55).
Age: Eocene.
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Comments Fensome et al., 2019a:
Archangelsky (1969) considered that this species has an apical archaeopyle. However, G. R. Guerstein (personal communication 2017) noted that a restudy of the type material confirmed that this species has a precingular archaeopyle. Following suggestions by Archangelsky (1969), Gonzalez Estebenet et al. (2015, 2016) considered Senoniasphaera sarrisii to be an extreme member of the Turbiosphaera filosa complex (their morphotype 1). These authors considered the morphological variation within the Turbiosphaera filosa complex to parallel the variation described by Benedek & Gocht (1981 and references therein) and Pross (2001) for Thalassiphora pelagica. However, Gonzalez Estebenet et al. (2015, 2016) made no formal taxonomic proposals, so for now we questionably transfer Senoniasphaera? sarrisii to Turbiosphaera.
Stratigraphical occurrence. The type material is from the Eocene of Argentina.
Turbiosphaera sarrisii (Archangelsky, 1969a, p.411, pl.2, figs.5–7) Fensome et al., 2019a, p.55.
Holotype: Archangelsky, 1969a, pl.2, figs.6–7; Fensome et al., 2019a, figs.20E–F.
Originally Polystephanephorus?, subsequently Senoniasphaera?, thirdly (and now) Turbiosphaera.
Questionable assignment: Fensome et al. (2019a. p.55).
Age: Eocene.
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Comments Fensome et al., 2019a:
Archangelsky (1969) considered that this species has an apical archaeopyle. However, G. R. Guerstein (personal communication 2017) noted that a restudy of the type material confirmed that this species has a precingular archaeopyle. Following suggestions by Archangelsky (1969), Gonzalez Estebenet et al. (2015, 2016) considered Senoniasphaera sarrisii to be an extreme member of the Turbiosphaera filosa complex (their morphotype 1). These authors considered the morphological variation within the Turbiosphaera filosa complex to parallel the variation described by Benedek & Gocht (1981 and references therein) and Pross (2001) for Thalassiphora pelagica. However, Gonzalez Estebenet et al. (2015, 2016) made no formal taxonomic proposals, so for now we questionably transfer Senoniasphaera? sarrisii to Turbiosphaera.
Stratigraphical occurrence. The type material is from the Eocene of Argentina.