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

Cyrtograptus hamatus	AD Manda et al. (2019)	PŠ3878
Cyrtograptus hamatus		p718
Cyrtograptus hamatus	Manda et al. (2019) Fig. 7D, 8A	PŠ3876
Cyrtograptus hamatus		p397
Cyrtograptus hamatus		p625
Cyrtograptus hamatus		p676
Cyrtograptus hamatus	Manda et al. (2019) Fig. 8D	PŠ3882
Cyrtograptus hemmanni Bouček, 1934	Štorch & Manda (2019) Text-fig. 7a (PŠ3902 a); 8a (PŠ3902 b); Manda et al.(2019)Fig.11	PŠ3902
Cyrtograptus hemmanni Bouček, 1934	Štorch & Manda (2019) Fig. 8b	PŠ3886
Cyrtograptus insectus	Štorch (1994a), Fig. 7J; Štorch (1994b),Pl.1, fig.1; Štorch (2023), Fig. 15H	PŠ571
Cyrtograptus lapworthi		p4686
Cyrtograptus lapworthi		BB729
Cyrtograptus lapworthi	Štorch (1994a), Fig. 6C; Štorch (2023), Fig. 15B	PŠ536
Cyrtograptus lundgreni	Manda et al. (2019) Fig. 8B	PŠ3875
Cyrtograptus lundgreni		PB661
Cyrtograptus lundgreni		PB663
Cyrtograptus lundgreni		p671
Cyrtograptus lundgreni		PB1031
Cyrtograptus lundgreni		PB1032
Cyrtograptus lundgreni		PB1044

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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]