Linguliformea (Linguliforms)

Linguliformea is a subphylum of former inarticulate brachiopods. These were the earliest of brachiopods, ranging from the Cambrian into the Holocene. They rapidly diversified during the Cambrian into the Ordovician, but most families went extinct by the end of the Devonian.The articulation in these brachiopods is lacking. These brachiopods have adductor and oblique muscles, but no diductor muscles. The anus is located at the side of the body. The pedicle is a hollow extension of the ventral body wall. Posterior body wall separates dorsal and ventral mantles. The shells are usually made up of apatite (calcium phosphate), however rare cases have calcite or aragonite shells.

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

Ungula Pander, 1830		JK5293
Ungula Pander, 1830		JK5296
Ungula Pander, 1830		JK5295
Ungula Pander, 1830		JK5294
Ungula Pander, 1830		JK5297
Vandalotreta valfra		MM355
Vandalotreta valfra		MM337
Vandalotreta valfra		MM358
Vandalotreta valfra		MM342
Vandalotreta valfra		MM359
Vandalotreta valfra		MM366
Vandalotreta valfra	Mergl (1988), Pl. I, fig. 5	MM367
Vandalotreta valfra		MM339
Vandalotreta valfra		MM340
Vandalotreta valfra		MM341
Vandalotreta valfra	Mergl (1988a), Pl. I, fig. 4	MM346
Vandalotreta valfra		MM365
Vandalotreta valfra		MM344
Vandalotreta valfra	Mergl (1988a), Pl. I, fig. 2	MM338
Vandalotreta valfra		MM360

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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]