sphinctozoans most significant (60 % of framework).
Amblysiphonella, Intrasporecoelia, Tebagathalamia, Rhabdactinia and smaller Sollasia, Guadalupia, Cystothalamia, Colospongia, Sinocoelia.
Inozoans 10 % of framework. Peronidella, Intratubospongia, Radicanalospongia, Stellispongia, Corynella, Grossotubenella, Cavusonella.
Two types of chaetetids.
Palaeoaplysina (!) abundant.
Archaeolithoporella
Tubiphytes.
Baffle- and Framestones.