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

Cystograptus ancestralis	AD, Štorch (1985)	PŠ162
Cystograptus ancestralis	AD, Štorch (1985)	PŠ156
Cystograptus ancestralis	AD, Štorch (1985)	PŠ160
Cystograptus ancestralis	AD, Štorch (1985)	PŠ154
Cystograptus ancestralis	Štorch (1985), Pl. IV, fig. 1, 4, text. fig. 3A	PŠ73
Cystograptus tridens (Manck, 1923)	Štorch (2023), Fig. 6L	PŠ4379
Cystograptus vesiculosus	AD, Štorch (1985)	PŠ159
Cystograptus vesiculosus	Štorch (1985), Pl. II, fig. 7	PŠ90
Cystograptus vesiculosus	AD, Štorch (1985)	PŠ178
Cystograptus vesiculosus		BB593
Cystograptus vesiculosus	AD, Štorch (1985)	PŠ155
Cystograptus vesiculosus	Štorch (1985), Pl. IV, fig. 8, text. fig 3F	PŠ184
Cystograptus vesiculosus	Štorch (2023), Fig. 6I	PŠ4384
Cystograptus vesiculosus	Štorch (1985), Pl. II, fig. 1, text. fig 3G (PŠ 169/2); Pl. IV, fig. 7, text. fig 3E (PŠ 169/3)	PŠ169
Cystograptus vesiculosus	Štorch (1985), Pl. II, fig. 5; Štorch (1982), Pl. II, fig. 7	PŠ63
Demirastrites convolutus	Štorch (1998), Pl. 18, fig. 1; Text-fig. 11, figs. 7B	PŠ695
Demirastrites convolutus		BB571
Demirastrites pectinatus		p3818
Demirastrites pectinatus		RH36
Demirastrites pectinatus		BB615

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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]