†order Trepostomata Ulrich 1882 (bryozoan)
Parent taxon: Stenolaemata according to A. Jiménez-Sánchez et al. 2015
See also Bassler 1953, Boardman and Buttler 2005, Boardman et al. 1983, Boardman and Cheetham 1987, Ernst et al. 2015, Ernst et al. 2014, Ernst and Nakrem 2012, Gilmour and Snyder 2000, Jiménez-Sánchez 2009, Koromyslova 2011, Sepkoski 2002 and Zhang et al. 2018
Sister taxa: Assatkinella, Bajolla, Basslederella, Brestopora, Cryptostomata, Cyclophaenopora, Cyclostomatida, Fenrstrata, Niigaella, Orbiporidae, Palaeostomata, Pycnobasis, Rhabdomesida, Schischatella, Tubuliporata
Subtaxa: Amalgamata Esthonioporina Glossotrypa Halloporina Integrata Loxophragma Polycylindricus Ralfimartitidae Trematoporidae
Ecology: stationary epifaunal suspension feeder