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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

Glyptograptus MD180
Glyptograptus BB591
GlyptograptusŠtorch (2001), Pl. II, fig. 6, text. fig. 7, fig. 5 MŠ11608
Glyptograptus YA3076
Glyptograptus tamariscus p376
Glyptograptus tamariscusŠtorch (1998), Pl. 3, fig. 4; Text-fig. 4, fig. 6C PŠ734
Glyptograptus tamariscus BB575
Glyptograptus tamariscus p378
Glyptograptus tamariscusŠtorch (1998), Pl. 3, fig. 1; Text-fig. 4, fig. 6A PŠ778
Glyptograptus tamariscusŠtorch (1998), Pl. 3, fig. 2 PŠ714
Glyptograptus tamariscusŠtorch (1998), Pl. 3, fig. ; Text-fig. 4, fig. 6 D (1); Pl. 3, fig. 7, Text-fig. 4, fig. 6B (2) PŠ713
Glyptograptus tamariscus PŠ776
Glyptograptus tamariscus PŠ763
Glyptograptus tamariscus dufkaiŠtorch (1992), Pl. I, fig. 1, text. fig. 2 F PŠ60
Glyptograptus tamariscus dufkaiŠtorch (1992), Pl. I, fig. 4, text. fig. 2 G PŠ66
Glyptograptus teres p3674
Glyptograptus teretiusculus p4847
Glyptograptus teretiusculusBouèek (1973), Pl. XXIV, fig. 5 BB107
Glyptograptus teretiusculusBouèek (1973), Pl. XXIV, fig. 1 BB17
Glyptograptus teretiusculus BB292

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]