ammonites
Pachyascus formosus Schrammen 1937 (glass sponge)

Hexactinellida - Hexactinosa - Craticulariidae

Belongs to Pachyascus according to Schrammen 1937

Sister taxa: Pachyascus batalleri, Pachyascus lopatinensis, Pachyascus punctatus

Ecology: stationary epifaunal suspension feeder