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Graptolithina

      Graptolithina is the a class in the animal phylum Hemichordata, the members of which are known as Graptolites. Graptolites are fossil colonial animals known chiefly from the Upper Cambrian through the Lower Carboniferous (Mississippian). A possible early graptolite, Chaunograptus, is known from the Middle Cambrian. The name graptolite comes from the Greek graptos, meaning "written", and lithos, meaning "rock", as many graptolite fossils resemble hieroglyphs written on the rock. Linnaeus originally regarded them as 'pictures resembling fossils rather than true fossils', though later workers, supposed them to be related to the hydrozoans.[citation needed] More recent work places them near the pterobranchs, possibly within.

Sources: http://en.wikipedia.org/wiki/Graptolite

On-line reference: Benton a Harper: Introduction to the Paleobiology

Zdroj: Benton a Harper: Introduction to the Paleobiology

Pseudoclimacograptus (Undulograptus) jaroslaviBouček (1973), text. fig. 37 BB150
Pseudoclimacograptus (Undulograptus) jaroslaviBouček (1973), Pl. XXI, fig. 7, Pl. XXII, fig. 7 BB149
Pseudoclimacograptus (Undulograptus) klabavensisBouček (1973), Pl. XXII, fig. 6, Pl. XXI, fig. 1 BB151
Pseudoclimacograptus (Undulograptus) klabavensis BB233
Pseudoclimacograptus (Undulograptus) klabavensis BB287
Pseudoclimacograptus (Undulograptus) klabavensisBouček (1973), Pl. XXI, fig. 3 BB153
Pseudoclimacograptus (Undulograptus) klabavensisBouček (1973), Pl. XXII, fig. 5, Pl. XXI, fig. 2 BB152
Pseudoclimacograptus (Undulograptus) klabavensis BB337
Pseudoclimacograptus (Undulograptus) klabavensis BB319
Pseudoclimacograptus (Undulograptus) klabavensis BB338
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. II, fig. 5; Bouček (1973), Pl. XX, fig. 6 BB139
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. I, fig. 3; Bouček (1973), Pl. XX, fig. 10 BB145
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. II, fig. 3 BB137
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. I, fig. 7, Pl. 2, fig. 4; Bouček (1973), Pl. XXI, fig. 6 BB138
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. I, fig. 7; Bouček (1973), Pl. XX, fig. 9 BB148
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. I, fig. 2 BB140
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. II, fig. 1; Bouček (1973), Pl. XX, fig. 4, Pl. XXI, fig. 5 BB143
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. I, fig. 6, Pl. II, fig. 2; Bouček (1973), Pl. XX, fig. 6 BB144
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. I, fig. 9, Pl. II, fig. 6; Bouček (1973), Pl. XXI, fig. 4, Pl. XX, fig. 7, 8 BB146
Pseudoclimacograptus (Undulograptus) paradoxusBouček (1944), Pl. II, fig. 8 BB141
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]