Stenolaemata (Stenolaemates)

Stenolaemata are a class of marine bryozoans with tubular zooids with strongly calcified walls. They are characterized by a lophophore which is protruded by the action of annular muscles. Most forms lack an operculum. The fossil Batostoma genus (member of order Trepostomatida) existed in monticular colonies. Stenolaemata were the predominant bryozoan group during the Paleozoic. Some grew as lacy or fan-like colonies that became important reef builders and in some regions form an abundant component of limestones. Their numbers were greatly reduced during the terminal Permian extinction event, but a single order, the Cyclostomatida, survives today.

Source: http://en.wikipedia.org/wiki/Stenolaemata

Batostoma		KP885
Batostoma		KP699
Batostoma		YA366
Batostoma		p1908
Batostoma		KP698
Batostoma		VH5130
Batostoma		KP901
Batostoma		YA279
Batostoma		KP903
Batostoma		YA297
Berenicea vetera	Mergl (1983), Pl. III, fig. 1	MM139
Berenicea vetera	Mergl (1983), Pl. III, fig. 4, 5	MM140
Berenicea vetera	Mergl (1983), Pl. III, fig. 3	MM138
Diplotrypa petropolitana		XA90
Fenestella bohemica		JH282
Fenestella bohemica		JH297
Fenestella exilis		JH301
Fenestella exilis		JH290
Fenestella gracilis		YA81
Fenestella		YA58

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Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]