. Bulletin of the Natural Histort Museum. Geology series. 158 M. MOHANTI AND BRUNTON. Fig. 6 Isopoma gryps Schmidt. Sections through the socket region of a poorly preserved specimen showing thickened valves. Greifenstein Kalk. Lower Eifelian, trench at Wiege, Greifenstein, Hessen, Germany; BD 12786. x 9. imiplication modified by a zig-zag commissure resulting from 6-7 short, anteriorly confined ribs. The ventral valve is further ornamented by a median groove originating close to the umbo. Isopoma hertae has also been recorded by Ficner & Havlicek (1978) from the Lower Givetian beds
. Bulletin of the Natural Histort Museum. Geology series. 158 M. MOHANTI AND BRUNTON. Fig. 6 Isopoma gryps Schmidt. Sections through the socket region of a poorly preserved specimen showing thickened valves. Greifenstein Kalk. Lower Eifelian, trench at Wiege, Greifenstein, Hessen, Germany; BD 12786. x 9. imiplication modified by a zig-zag commissure resulting from 6-7 short, anteriorly confined ribs. The ventral valve is further ornamented by a median groove originating close to the umbo. Isopoma hertae has also been recorded by Ficner & Havlicek (1978) from the Lower Givetian beds of the Celechovice area in Moravia, Czech Republic. Isopoma isiliense Rzhonsnitskaya, 1953 1953 Isopoma isiliensis Rzhonsnitskaya: 177, pi. 10, figs 12, 13. Comment. The only known occurrence is the original description of specimens from the Upper Frasnian of the Kuznetsk Basin,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Natural History Museum (London). Andover : Intercept
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