†subfamily Palaeoschadinae Myagkova 1955 (demosponge)
Demospongiae - Agelasida - Aphrosalpingidae
Parent taxon: Aphrosalpingidae according to B. Senowbari-Daryan and J. K. Rigby 2015
See also Rigby et al. 1994
Sister taxa: Fistulospongininae, Vesicocauliinae
Subtaxa: Palaeoschada Palaeoscheda
Type: Palaeoscheda
Ecology: stationary epifaunal suspension feeder
Distribution:
• Silurian of Canada (1: Northwest Territories collection), United States (1: Alaska)
Total: 2 collections each including a single occurrence