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

Thallograptus	AD, Kraft (1982)	JK5118
Thallograptus	AD, Kraft (1982)	JK5044
Thallograptus	AD, Kraft (1982)	JK5047
Thallograptus	Kraft (1982), Pl. 8, fig. 3	JK5078
Thamnograptus		XA824
Thamnograptus		XA823
Thamnograptus		XA822
Torquigraptus arcuatus		BB741
Torquigraptus contortus		BB761
Torquigraptus decipiens		PŠ757
Torquigraptus decipiens	Štorch (1998), Pl. 16, fig. 3; Text-fig. 8, fig. 8	PŠ716
Torquigraptus decipiens	Štorch (1998), Text-fig. 9, fig. 2	PŠ922
Torquigraptus denticulatus	Štorch (1998), Pl. 10, fig. 8; Text-fig. 8, fig. 6B	PŠ855
Torquigraptus denticulatus	Štorch (1998), Pl. 19, fig. 5; Text-fig. 8, fig. 6A	PŠ917
Torquigraptus denticulatus	Štorch (1998), Text-fig. 8, fig 6C (kus označený jako 2)	PŠ858
Torquigraptus involutus		BB725
Torquigraptus magnificus	Štorch (2001), text. fig. 7, fig. 10	MŠ11642
Torquigraptus magnificus	Štorch (2001), Pl. IV, fig. 5, text. fig. 10, fig. 9	MŠ11630
Torquigraptus magnificus	Štorch (2001), text. fig. 10, fig. 8	PŠ1043
Torquigraptus magnificus	Štorch &Frýda (2012) fig. 5g	PŠ1011

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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]