A fine spiriferacean with part of the brachial valve missing, exposing both spiralia in good relief. Most of the pedicle valve is present showing the umbo, interarea, delthyrium, hinge line, radial ribs and sulcus. From Indiana, USA.
Size: 33 mm by 27 mm by 20 mm
Size: 33 mm by 27 mm by 20 mm