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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

Pribylograptus argutus BB617
Pribylograptus argutusŠtorch (1988), Pl. V. fig. 2, text. fig. 3A PŠ211
Pribylograptus argutus PŠ131
Pribylograptus argutusŠtorch (1988), Pl. V, fig. 3, text. fig. 5c, b BB633
Pribylograptus argutusŠtorch (1988), text. fig. 5D BB640
Pribylograptus leptothecaŠtorch (1998), Pl. 9, fig. 4; Text-fig. 6, fig. 2 PŠ822
Pribylograptus leptotheca PŠ823
Pribylograptus leptothecaAD Horný (1956) RH1
Pribylograptus leptotheca RH37
Pribylograptus leptotheca RH34
Pribylograptus leptothecaŠtorch (2023), Fig. 10O PŠ4362
Pribylograptus RH85
PribylograptusAD Horný (1956) RH29
Pribylograptus RH82
Pribylograptus RH112
Pribylograptus RH67
Pribylograptus RH78
Pribylograptus spiculiformis (Ni, 1978) RH57
Pribylograptus spiculiformis (Ni, 1978) RH71
Pribylograptus spiculiformis (Ni, 1978) RH49
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]