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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 PŠ340
Rastrites linnaei BB655
Rastrites linnaei BB660
Rastrites linnaei PŠ348
Rastrites linnaei p1451
Rastrites linnaei PŠ307
Rastrites linnaei PŠ443
Rastrites longispinus p3833
Rastrites longispinus p3836
Rastrites longispinus p3421
Rastrites longispinusAD Horný (1956) RH83
Rastrites longispinusAD Horný (1956) RH19
Rastrites peregrinus p380
Rastrites peregrinus PŠ850
Rastrites peregrinus PŠ752
Rastrites peregrinusŠtorch (1998), Pl. 14, fig. 4; Text-fig. 6, fig. 6 BB6980
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 peregrinus PŠ854
Rastrites peregrinus PŠ717

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