Euplectellidae

Euplectellidae is a family of glass sponges (Hexactinellids) belonging to the order Lyssacinosa, first represented in the Ordovician fossil record, substantially older than molecular estimates of the clade's age.

== Taxonomies == According to the World Register of Marine Species (WoRMS) the family includes the following subfamilies and genera: Subfamily Bolosominae Tabachnick, 2002 Advhena Castello-Branco, Collins & Hajdu, 2020 Amphidiscella Tabachnick & Lévi, 1997 Amphoreus Reiswig & Kelly, 2018 Bolosoma Ijima, 1904 Caulocalyx Schulze, 1886 Hyalostylus Schulze, 1886 Neocaledoniella Tabachnick & Lévi, 2004 Rhizophyta Shen, Dohrmann, Zhang, Lu & Wang, 2019 Saccocalyx Schulze, 1896 Trachycaulus Schulze, 1886 Trychella Reiswig & Kelly, 2018 Vityaziella Tabachnick & Lévi, 1997 Subfamily Corbitellinae Gray, 1872 Atlantisella Tabachnick, 2002 Corbitella Gray, 1867 Dictyaulus Schulze, 1896 Dictyocalyx Schulze, 1886 Hertwigia Schmidt, 1880 Heterotella Gray, 1867 Ijimaiella Tabachnick, 2002 Plumicoma Reiswig & Kelly, 2018 Pseudoplectella Tabachnick, 1990 Regadrella Schmidt, 1880 Rhabdopectella Schmidt, 1880 Walteria Schulze, 1886 Subfamily Euplectellinae Gray, 1867 Acoelocalyx Topsent, 1910 Chaunangium Schulze, 1904 Docosaccus Topsent, 1910 Euplectella Owen, 1841 Holascus Schulze, 1886 Malacosaccus Schulze, 1886 Placopegma Schulze, 1895