1.3. part of ilXigena of samc to show surface markings. 14. Conocoryrhid. internal mould of pygidium...
13
1.3. part of ilXigena of samc to show surface markings. 14. Conocoryrhid. internal mould of pygidium and part or thorax BU Internal mould ol' a left thoracic pleura (GSM 102127