zos01 | Den Hartog (1976) recognised the Posidonietea and the Halodulo-Thalassietea as classes in their own right. Both were unfortunately invalidly published in his paper. (L. Mucina).
Synonyms
Posidonietea Den Hartog ex Géhu in Bardat et al. 2004
(2b)
Posidonietea Den Hartog ex Mucina in Mucina et al. 2016
(syntax.syn.)