Sinotubulites sp.

Zhuravlev, Andrey Yu., Liñán, Eladio, Vintaned, José Antonio Gámez, Debrenne, Françoise & Fedorov, Aleksandr B., 2012, New finds of skeletal fossils in the terminal Neoproterozoic of the Siberian Platform and Spain, Acta Palaeontologica Polonica 57 (1), pp. 205-224 : 218-219

Sinotubulites sp.

Fig. 5A, B .

Material.—Two etched fragments of inner molds from the Tirteafuera River locality, Abenójar Anticline, East Lusitanian–Alcudian Zone, central Spain; lower La Grajera−Cañuelo unit, Ibor Group; upper Ediacaran.

Description.—Phosphatised multilayered tubicolous microfossil with thick wall and sharp transverse surface sculpture of steep discontinues irregular intercalating wavy wrinkles. The largest fragment is 0.4 mm wide and ca. 1.0 mm long. Wrinkle density is ca. 20 wrinkles per 1 mm.

Remarks.—This fossil is morphologically close to Sinotubulites shaanxiensis Zhang, Li, and Dong in Ding et al. 1992 from the Gaojiashan Member of the Dengying Formation of the Shaanxi Province, South China published by Chen and Sun (2001: pl. 3: 6, 7). However, the fragmentary preservation of our specimen precludes detailed comparison.

Figures

Fig. 5. Late Ediacaran Sinotubulites sp. MPZ 2007/3922; Tirteafuera River, Abenójar Anticline, East Lusitanian–Alcudian Zone, central Spain; Ibor Group. A. Tube inner mold fragment with a longitudinal crack. B. Detail of A. Scale bars A 200 µm; B 100 µm. Both SEM images.