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

Cyclograptus scharyianus		JH150
Cyrtograptus bohemicus (Bouček, 1931)	Štorch (1994a), Fig. 7N; Štorch (2023), Fig. 17G	PŠ549
Cyrtograptus centrifugus		PŠ572
Cyrtograptus centrifugus		PŠ488
Cyrtograptus hamatus		p676
Cyrtograptus hamatus		p718
Cyrtograptus hamatus	Manda et al. (2019) Fig. 7D, 8A	PŠ3876
Cyrtograptus hamatus	Manda et al. (2019) Fig. 8D	PŠ3882
Cyrtograptus hamatus		p625
Cyrtograptus hamatus	AD Manda et al. (2019)	PŠ3878
Cyrtograptus hamatus		p397
Cyrtograptus hemmanni Bouček, 1934	Štorch & Manda (2019) Fig. 8b	PŠ3886
Cyrtograptus hemmanni Bouček, 1934	Štorch & Manda (2019) Text-fig. 7a (PŠ3902 a); 8a (PŠ3902 b); Manda et al.(2019)Fig.11	PŠ3902
Cyrtograptus insectus	Štorch (1994a), Fig. 7J; Štorch (1994b),Pl.1, fig.1; Štorch (2023), Fig. 15H	PŠ571
Cyrtograptus lapworthi		BB729
Cyrtograptus lapworthi	Štorch (1994a), Fig. 6C; Štorch (2023), Fig. 15B	PŠ536
Cyrtograptus lapworthi		p4686
Cyrtograptus lundgreni		BB609
Cyrtograptus lundgreni		p728
Cyrtograptus lundgreni		p671

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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]