Williriedellum peterschmittae Schaaf, 1981

Dumitrica, Paulian, Dieni, Iginio & Massari, Francesco, 2022, Valanginian Radiolarians Of Ne Sardinia (Italy) In The Frame Of The Weissert Event, Acta Palaeontologica Romaniae 18 (2), pp. 97-159 : 123

Williriedellum peterschmittae Schaaf, 1981

Fig. 6e

1972 Hemicryptocapsa (?) nodosa (Tan) – Dumitrică, p. 841, pl. 1, fig. 6; pl. 2, figs. I, 2.

1981 Williriedellum peterschmittae Schaaf , p. 440, pl. 1, figs. 3a, 3b; pl. 9, figs. 3a, 3b.

1991 radiolari – Dieni & Massari, fig. 23e.

2017 Hiscocapsa sp. aff. kaminogoensis (Aita) – Xu & Luo, fig. 5h.

Dimensions. Length of shell 196 µm, diameter of thorax 174 µm.

Remarks. This species was already illustrated from the S’Ozzastru section by Dieni & Massari (1991); another specimen was found in sample OZ837 but not illustrated with SEM image.

Range and occurrence. Barremian of Mid Pacific Mountains (Schaaf, 1981) and upper Valanginian of S’Ozzastru section, Sardinia .

Figures

Fig. 6 Radiolarians illustrated by Dieni & Massari, 1991 in their Fig. 23c-i which correspond to the letters from that article: c - Favosyringium affine (Rüst), d - Pseudoxitus seriola - Dumitrică, e - Williriedellum peterschmittae Schaaf, f - Cryptamphorella Dumitricăi Schaaf, g – Ristola nakatonbetsensis Tumanda, h - Crococapsa zweili (Jud), i - Cryptamphorella circumthoracica Dumitrică n. sp., Fig. c x200, figs. d-i x250.