Pseudedomia hamaouii Rahaghi, 1976

Schlagintweit, Felix, 2020, Maastrichtian Larger Benthic Foraminifera From The Arabian Plate Sensu Lato: New Data From Somalia, Turkey, And Iran, Acta Palaeontologica Romaniae 16 (2), pp. 69-83 : 78

Pseudedomia hamaouii Rahaghi, 1976

Fig. 6

1976 Pseudedomia hamaouii n. sp. – Rahaghi, p. 6, pl. 1, fig. 1-11 (Campanian Gurpi Formation of Iran).

1997 Fallotia sp. – Çoruh et al., pl. 74, figs. 4–5 (late? Maastrichtian Besni Formation of Turkey).

2010 Fallotia ? sp. (probably new genus) – Sirel, pl. 2, figs. 5–13 (late Maastrichtian Beyobasi Formation of Turkey).

2016a Fallotia jacquoti Douvillé – Schlagintweit et al., fig. 7L (late Maastrichtian Tarbur Formation of Iran).

?2017 Pseudedomia hekimhanensis Görmüş – Solak et al., fig. 12 T1-T3 (Maastrichtian of S-Turkey).

2018 Pseudedomia sp. – Luger, p. 95, pl. 16, fig. 10 (late Maastrichtian Auradu Formation of Somalia).

Remarks: Test diameter is mostly between 1.6 mm and 2.0 mm (maximum 2.2 mm), thickness is 0.3 mm to 0.5 mm. The tiny proloculus observed in some forms has a diameter from 0.06 mm to 0.07 mm ( Fig. 6d ). Adult specimens consist of up to 15 planispirally-involute coiled whorls. The original material of Rahaghi was deriving from two localities in the Zagros Zone belonging to the so-called Lopha Limestone Member of the Gurpi Formation and assigned to the upper Campanian ( Wynd, 1965; Hashmie et al., 2020). P. hamaouii is intermediate in size between the smaller P. hekimhanensis from the late Campanian?-Maastrichtian of Turkey ( Görmüş, 1999) and the larger type-species P. striata from the Maastrichtian of Qatar ( Henson, 1948). The specimens from Iran have been observed in the lower part of the Tarbur Formation in bioclastic packstones together with siderolitids, and Omphalocyclus ( Fig. 6a ). In southern Turkey it is recorded as P. hekimhanensis by Solak et al. (2019, fig. 9) from strata assigned to the lower Maastrichtian, namely an “ Orbitoides , Omphalocyclus , Siderolites assemblage zone”.

Figures

Fig. 6 Pseudedomia hamaouii Rahaghi from the Campanian (Lopha Limestone Member: b), and upper Maastrichtian of Iran (Tarbur Formation: a, d), and Somalia (Auradu Formation: c). a Bioclastic packstone with P. hamaouii Rahaghi, Siderolites calcitrapoides Lamarck (S), and Omphalocyclus macroporus Lamarck (O); Fasa section. b from Rahaghi (1976, pl. 1, fig. 11). c from Luger (2018, pl. 16, fig. 10 as Pseudedomia sp.). d Fasa section.