Meleagrinella? sp.

Fuersich, Franz T., Alberti, Matthias, Pandey, Dhirendra K. & Ayoub-Hannaa, Wagih S., 2022, Jurassic bivalves from the Spiti area of the Himalayas, northern India, Zitteliana 96, pp. 153-178 : 153

Meleagrinella? sp.

Material.

A single right valve from the top of the lower member at Komic (SNSB-BSPG 2020 XCIX 16).

Description and remarks.

The small, slightly crushed specimen (H: 3.5 mm) is suborbicular and nearly flat. The dorsal margin is long and straight, the anterior, posterior and ventral margins are well rounded. There is no sign of a posterior wing, the dorsal margin forming a blunt angle with the posterior margin. The umbo is small, more or less mesial, and not protruding beyond the dorsal margin. The shell thin, and ornamented with remains of spaced commarginal riblets. The annterior auricle is small but has a deep byssal notch.

Right valves of Meleagrinella are generally regarded as having a small pointed posterior wing ( Cox 1969), which is apparently lacking in the present specimen. For this reason, it is referred to the genus Meleagrinella with reservation. The Meleagrinella sp. indet. of Kanjilal and Pathak (1998, p. 35, pl. 1, fig. 4) is difficult to evaluate and comes from the upper part of the Spiti Shale Formation.