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

Westonia fatkai				MM432
Westonia fatkai				MM439
Westonia lamellosa				p3304
Westonia lamellosa				p3303
Westonia lamellosa				p3329
Westonia lamellosa				p3306
Westonia lamellosa				p3300
Westonia lamellosa				p3299
Westonia lamellosa				p3307
Westonia lamellosa				p3308
Westonia lamellosa				p3301
Westonia lamellosa				p3305
Westonia lamellosa				p3302

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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]