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

Elkanisca klouceki (Koliha, 1918)	Peršín, Mergl, Budil a Tasáryová (2018), Fig. 3. 2	JP2001
Eoconulus gemmatus		MM332
Eoconulus gemmatus		MM377
Eoconulus gemmatus		MM378
Eoconulus gemmatus		MM335
Eoconulus gemmatus		MM334
Eoconulus gemmatus		MM331
Eoconulus gemmatus		MM330
Eoconulus gemmatus		MM333
Eoconulus gemmatus		MM329
Eoconulus		MM455
Eoconulus		MM450
Eoconulus		MM451
Eoconulus		MM453
Eocunulus gemmatus		MM375
Glyptacrothele bohemica	Mergl a Šlehoferová (1990), Pl. VIII, fig. 12	MM290
Glyptacrothele bohemica	Mergl a Šlehoferová (1990), Pl. VIII, fig. 11	MM291
Glyptacrothele bohemica	Mergl a Šlehoferová (1990), Pl. VIII, fig. 13	MM289
Glyptacrothele bohemica bohemica		YA1314
Glyptacrothele bohemica bohemica	Mergl a Šlehoferová (1990), Pl. IX, fig. 2	MM264

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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]