Williriedellum buekkense (Kozur, 1984)

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 : 120-121

publication ID

https://doi.org/ 10.35463/j.apr.2022.02.06

persistent identifier

https://treatment.plazi.org/id/EE35878D-0E60-AA37-5708-F8FEFDC8FC97

treatment provided by

Felipe

scientific name

Williriedellum buekkense (Kozur, 1984)
status

 

Williriedellum buekkense (Kozur, 1984)

Figs. 9j View Fig , ja-jb

1984 Praezhamoidellum buekkensis Kozur , p. 54, pl. 3, figs. 1a-b.

1988 Theocorys renzae Schaaf – Thurow, p. 407, pl. 8, fig. 1, non Schaaf, 1981.

1998 Tricolocapsa buekkense (Kozur) – Cordey, p. 128, pl. 27, fig. 9.

2006 Williriedellum buekkense (Kozur) – O’Dogherty et al., p. 24, pl. 9, figs. 1-6.

2006 Praezhamoidellum buekkense Kozur – Auer et al., p. 42, fig. 31.

2016 Hemicryptocapsa buekkensis (Kozur) – O’Dogherty et al., p. 24, Fig. 9.1-9.6 View Fig .

Studied material. Three specimens in coll. MGP-PD, stub PD120 as follows: PD120 - OZ834- R09-17 , PD120 - OZ834- R10-19 , and PD120 - OZ839- R03-09 .

Description. Shell three-segmented, ovoid and smoothedfaced with sparse and irregularly distributed very small circular pores. Sutural pores very small and sieve structured (fig. 9j1). Aperture very small and simple. Intersegmental boundaries generally not marked by constrictions.

Dimensions. Height of test 92-101μm, of abdomen 67-77 μm, diameter of abdomen 71-81 μm.

Remarks. Despite its smooth surface, the assignation of this species to the genus Hemicryptocapsa (O’Dogherty et al., 2017) is erroneous, in our opinion, because this genus has a very small fourth segment and no sutural pore.

Range and occurrence. A long-ranged species, known from Middle Jurassic to Hauterivian.

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