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

Pseudoreticulograptus inusitatus		XA356
Pseudoreticulograptus inusitatus		XA353
Pseudoreticulograptus inusitatus		XA358
Pseudoretiolites perlatus		PŠ721
Pseudoretiolites perlatus	Štorch (2001), Pl. I, fig. 1	PŠ1031
Pseudoretiolites perlatus	Štorch (1998), Pl.6, fig. 1; Text-fig. 6, fig. 8	PŠ861
Pseudoretiolites perlatus		p383
Pseudoretiolites perlatus	Štorch (1998), Pl. 6, figs. 7, 9	PŠ755
Pseudoretiolites perlatus		PŠ729
Pseudoretiolites perlatus		p382
Pseudoretiolites perlatus	Štorch, (2001), Pl. II, fig. 1	PŠ1041
Pseudoretiolites perlatus	Štorch (1998), Pl. 6, fig. 8	PŠ780
Pseudoretiolites	AD Horný (1956)	RH24
Pseudoretiolites		RH69
Pseudorthograptus cyperoides		BB718
Pseudorthograptus insectiformis	Štorch (1998), Text-fig. 4, fig. 10A	PŠ771
Pseudorthograptus insectiformis		PŠ916
Pseudorthograptus insectiformis	Štorch, (2001), text. fig. 7, fig. 14	PŠ1039
Pseudorthograptus insectiformis	Štorch (1998), Text-fig. 4, fig. 10B	PŠ813
Pseudorthograptus		BB719

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