This comprises two items: OT 33.0A (An almost complete, isolated internal mould with exoskeleton in the axial region. It shows the facial sutures well and the terrace lines on the pygidial margin. The complete hyperstome, part exoskeleton, part internal mould is in place on the undersurface and also shows fine terrace lines. The anterior part of the cephalon has broken away and is present on a block together with the external mould of the hypostome). and OT 33.0B (The counterpart of OT 33.0A featuring the anterior part of the cephalon as exoskeleton together with the external mould of the hypostome showing the fine terrace lines. The facial sutures are present and line up with those on the rest of the cephalon on OT 33.0A). From Bygdoy, Oslo region, Norway.
Size: 88 x 44mm
Size: 88 x 44mm