Tryblionella angustatula (Lange-Bert.) Cantonati & Lange-Bert.
Tryblionella angustatula in Phytotaxa 328: 91. 2017
is new combination for Nitzschia angustatula in Biblioth. Diatomol. 15: 6-7, pl. 18, fig. 1–4. 1987
is validating1 Tryblionella angustatula in Lange-Bertalot, Hofmann & al., Freshwater benthic diatoms of Central Europe. 2017