Caninia cylindrica (Scouler)
Cut and polished section through a solitary coral. The polished face shows beautiful detail of the arrangement of all the internal features..
Carboniferous, Asbian, Cefn Mawr Limestone Formation
Eglwyseg /Trevor escarpment, Llangollen, Denbighshire, North Wales.
Coral : 4.5 x 4 x 0.5 cm.