|Geological Age |
It has wide, angled ribs that have led to it being called the ‘denture clam’. The zig-zag join between the two shells stopped coarse dirt and debris entering the shell and damaging its soft body. Like modern oysters it lived in shallow coastal waters including the intertidal zone (the area between high and low tide) and fed on food particles that it filtered out of the sea water.
由3D (32) 邱子櫻 於30/5/2019編寫
由3C (3) 陳本晞 於30/5/2019編寫
3C (4) 陳盈心 於30/5/2019最後編改
3D (32) Yau Tsz Ying on 30/5/2019
3C (3) Javis Chan on 30/5/2019
Last modified by 3C (4) Chan Ying Sum, Zoe on 30/5/2019