enameloid造句

• Their dorsal and ventral shield is made up by numerous polygonal platelets of aspidine, ornamented with large dentine tubercles capped with a thick enameloid layer.
• The scales comprise a non-growing " crown " composed of dentine, with a sometimes-ornamented enameloid upper surface and an aspidine base.
• The scales consist of a non-growing " crown " composed of dentine, with a sometimes-ornamented enameloid upper surface and an aspidine ( acellular bony tissue ) base.