One side and the venter of a very fine wholly septate adult, retaining most of the test with the fine ribbing showing particularly well, 61 primaries on the outer whorl with secondaries arising high on the flank and crossing the venter. Sutures are visible towards the end of the last whorl. The impression of the umbilical seam continues for a further whorl and shows uncoiling. From England, UK.
Size: 82mm diameter
Size: 82mm diameter