Mesopholidostrophia Williams, 1950

Musteikis, Petras & Cocks, L. Robin M., 2004, Strophomenide and orthotetide Silurian brachiopods from the Baltic region, with particular reference to Lithuanian boreholes, Acta Palaeontologica Polonica 49 (3), pp. 455-482 : 465

Mesopholidostrophia Williams, 1950

Remarks.—The type species of Mesopholidostrophia is M. nitens ( Williams, 1950) from the Wenlock Mulde Marl of Gotland, a junior subjective synonym of M. laevigata (J. de C. Sowerby, 1839) , whose type locality is from the Upper Wenlock of the type Wenlock area, England. The species was revised by Bassett and Cocks (1974: 18) from Gotland and by Bassett (1977) from Britain. From Baltica are recorded Mesopholidostrophia aff. fletcheri ( Davidson, 1847) , whose type locality is also from the Upper Wenlock of the type Wenlock area, from the Upper Wenlock Mulde Beds of Gotland ( Bassett and Cocks 1974: 18), and Mesopholidostrophia sifae Baarli, 1995 from the Aeronian Rytteråker Beds of the Oslo region ( Baarli 1995: 46).

The Lithuanian distribution of M. laevigata ( Fig. 5H–K) is in the Švenčionys (Telychian), Paprieniai, Jačionys formations and the Jonava Beds of the Birštonas Formation (Sheinwoodian) in east Lithuania, the upper part of the Jūrmala Formation (Telychian), Riga and Gėluva formations (Sheinwoodian and Homerian), the Šešupė Beds of the Dubysa Formation (Gorstian) in central Lithuania, and the Dubysa, Rusnė, Mituva and Pagėgiai formations (Gorstian and Ludfordian) in west Lithuania (Appendix).