| 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 | Glyptograptus | Štorch (2001), Pl. II, fig. 6, text. fig. 7, fig. 5 | | | MŠ11608 | Glyptograptus | | | | YA3076 | Glyptograptus tamariscus | | | | p376 | Glyptograptus tamariscus | Štorch (1998), Pl. 3, fig. 4; Text-fig. 4, fig. 6C | | | PŠ734 | Glyptograptus tamariscus | | | | BB575 | Glyptograptus tamariscus | | | | p378 | Glyptograptus tamariscus | Štorch (1998), Pl. 3, fig. 1; Text-fig. 4, fig. 6A | | | PŠ778 | Glyptograptus tamariscus | Štorch (1998), Pl. 3, fig. 2 | | | PŠ714 | Glyptograptus tamariscus | Štorch (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 dufkai | Štorch (1992), Pl. I, fig. 1, text. fig. 2 F | | | PŠ60 | Glyptograptus tamariscus dufkai | Štorch (1992), Pl. I, fig. 4, text. fig. 2 G | | | PŠ66 | Glyptograptus teres | | | | p3674 | Glyptograptus teretiusculus | | | | p4847 | Glyptograptus teretiusculus | Bouèek (1973), Pl. XXIV, fig. 5 | | | BB107 | Glyptograptus teretiusculus | Bouèek (1973), Pl. XXIV, fig. 1 | | | BB17 | Glyptograptus teretiusculus | | | | BB292 |
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