Loopus cf. primitivus (Matsuoka & Yao), 1985

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 : 144

Loopus cf. primitivus (Matsuoka & Yao), 1985

Fig. 14o

1985 Pseudodictyomitra primitiva Matsuoka & Yao , p. 131, pl. 1, figs. 1-6; pl. 3, figs. 1-4.

1993 Loopus primitivus (Matsuoka & Yao) – Yang, p. 125, pl. 23, figs. 5, 6, 13, 21.

1994 Pseudodictyomitra primitiva Matsuoka & Yao – Goričan, p. 84, pl. 22, fig. 16.

1995 Pseudodictyomitra primitiva Matsuoka & Yao - Baumgartner et al., p. 454, pl. 3189, figs 1-4.

Studied material. A single specimen from sample OZ834. Dimensions. Length 156 µm, diameter 76 µm.

Range and occurrence. Upper Bathonian to Tithonian or Valanginian, worldwide.

Figures

Fig. 14 a - Archaeodictyomitra conicoscalaris Dumitrică n. sp., OZ839. b, f - Archaeodictyomitra humerosa Dumitrică n. sp.: b - OZ834, f - OZ824. c - Archaeodictyomitra pumila Dumitrică n. sp., OZ834. d, e - Archaeodictyomitra conica (Aliev), OZ824. g - Thanarla cf. pulchra (Squinabol), OZ825. h - Thanarla pulchra (Squinabol), OZ839. i, j – Mictyoditra thiensis (Tan), OZ836. k - Archaeodictyomitra excellens (Tan), OZ839. l - Archaeodictyomitra sp., OZ836. m, n - Loopus nudus (Schaaf): m - OZ838, n - OZ834. o - Loopus cf. primitivus (Matsuoka & Yao), OZ834. p, p1, p2 - Svinitzium depressum (Baumgartner), p1, p2 - details of penultimate segmental band showing relic pores of parvicingulid type or other types, OZ824. Figs. r, t - Svinitzium (?) irregulare Dumitrică n. sp.: r - OZ 836, t - OZ834. s, u - Pseudodictyomitra cf. carpatica (Lozynyak): s - OZ834, u - OZ 824. Figs. b, n x250, the others x300.