Order
Achnanthales
曲壳藻目
46 species in this taxon
order of algae Achnanthales (Achnanthales) is an order comprising closely related families of organisms. It contains 3 families with 46 known species. This includes the family groups Achnanthaceae, Achnanthidiaceae, and Cocconeidaceae. It belongs to Bacillariophyceae (Bacillariophyceae).