In the course of field works in 2005 and 2006, the authors collected new material of Bicarinatina from the outcrops on the banks of the Poruni River (5-20 m upstream of the bridge on the Gorodenka-Poruni road) and the Gorodenka Stream (Fig.
bicarinata as Lingula bicarinata from the localities of the Narva Regional Stage in northeastern Estonia (Gorodenka and Poruni) and reported it from the environs of Viljandi.
2C) of a specimen from the Gorodenka Stream, Estonia, in the collection of Gravitis, LDM G50/4a, assigned to Bicarinatina sakalana is closely similar to the dorsal interior of B.
Natural outcrops of rocks occur at the Narva River and its tributes (Poruni River, Gorodenka Brook), and Narva and Sirgala oil shale quarries.
The lower, Vadja Fm is represented by a thin-bedded 16-20 m thick complex of alternating light grey and yellowish dolostone, grey dolomitic marlstone and dark grey claystone (Kuningakula 6950 drill core, 12.7-28.9 m; Gorodenka 6951 drill core, 10.7-28.1 m).