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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

Pristiograptus bohemicus JK7276
Pristiograptus bohemicus JK7273
Pristiograptus bohemicus p385
Pristiograptus bohemicus p405
Pristiograptus bohemicus p396
Pristiograptus bohemicus JK7275
Pristiograptus bohemicus JK7274
Pristiograptus concinnusŠtorch (1998), Pl 11, fig. 3 PŠ775
Pristiograptus concinnusŠtorch (1988), Pl. IV, fig. 2, 3, text. fig. 2B PŠ264
Pristiograptus concinnus PŠ210
Pristiograptus concinnusŠtorch (1988), Pl. IV, fig. 4 BB637
Pristiograptus concinnus PŠ240
Pristiograptus deubeliManda et al. (2019) Fig.9A PŠ3841
Pristiograptus deubeliŠtorch (2023), Fig. 20F PŠ4369
Pristiograptus deubeliManda et al. (2019) Fig. 9F PŠ3861
Pristiograptus deubeliAD Manda et al. (2019) PŠ3840
Pristiograptus deubeliAD Manda et al. (2019) PŠ3859
Pristiograptus deubeliAD Manda et al. (2019) PŠ3842
Pristiograptus deubeliAD Manda et al. (2019) PŠ3846
Pristiograptus deubeli p3847
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]