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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
Linguliformea Williams & al., 1996 MŠ2748
Linguliformea Williams & al., 1996 MŠ2750
Linguliformea Williams & al., 1996AD ? Kříž a kol. (1986) JK7499
Linguliformea Williams & al., 1996AD ? Kříž a kol. (1986) JK7498
Linguliformea Williams & al., 1996AD ? Kříž a kol. (1986) JK7505
Linguliformea Williams & al., 1996 CW774
Linguliformea Williams & al., 1996 CW799
Linguliformea Williams & al., 1996 KOS706
Linguliformea Williams & al., 1996 MD388
Luhotreta pompeckji MM427
Luhotreta pompeckji CW1064
Luhotreta pompeckji MM424
Luhotreta pompeckji MM426
Luhotreta pompeckjiMergl a Šlehoferová (1990), Pl. XI, fig. 13 MM272
Luhotreta pompeckji CW1066
Luhotreta pompeckji CW1065
Luhotreta pompeckji YA1320
Luhotreta pompeckjiMergl a Šlehoferová (1990), Pl. X, fig. 7-9 MM275
Luhotreta pompeckjiAD, Mergl a Šlehoferová (1990) MM273
Luhotreta pompeckjiMergl a Šlehoferová (1990), Pl. X, fig. 1-3 MM276
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]