Biddulphia tridens is a species of Bacillariophyta in the family Biddulphiaceae. They are native to Paraná, Espirito Santo, Rio Grande Do Norte, Rio De Janeiro, SãO Paulo, Pará, Alagoas, and Pernambuco. Dead Biddulphia tridens form siliceous oozes.
EOL has data for 11 attributes, including: