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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

Rastrites linnaei PŠ336
Rastrites longispinus p3833
Rastrites longispinus p3836
Rastrites longispinus p3421
Rastrites longispinusAD Horný (1956) RH83
Rastrites longispinusAD Horný (1956) RH19
Rastrites peregrinus PŠ850
Rastrites peregrinus PŠ752
Rastrites peregrinusŠtorch (1998), Pl. 14, fig. 4; Text-fig. 6, fig. 6 BB6980
Rastrites peregrinus PŠ844
Rastrites peregrinus p380
Rastrites peregrinus PŠ854
Rastrites peregrinus PŠ717
Rastrites peregrinusŠtorch (2023), Fig. 10J PŠ4376
Rastrites peregrinusŠtorch (1998), Pl.14, fig.2; Pl.15, fig. 7; Text-fig.11, fig. 3A; Pl.14, fig.9; Text-fig.11, fig. 3B PŠ724
Rastrites schaueri PŠ343
Rastrites schaueri PŠ344
Rastrites schaueri PŠ450
Rastrites schaueri BB668
Rastrites schaueri BB669
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]