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

Monograptus fritschi linearis		JK7930
Monograptus fritschi linearis		JK7908
Monograptus fritschi linearis		JK7933
Monograptus fritschi linearis		JK7902
Monograptus fritschi linearis		HJ12
Monograptus fritschi linearis		JK7898
Monograptus fritschi linearis		JK7894
Monograptus fritschi linearis		p4529
Monograptus fritschi linearis		JK7934
Monograptus fritschi linearis		JK7929
Monograptus fritschi linearis		JK7931
Monograptus fritschi linearis		JK7909
Monograptus fritschi linearis		p3579
Monograptus fritschi linearis		JK7928
Monograptus halli		p1459
Monograptus havliceki	Štorch (1988), Pl. XI. fig. 2, text. fig. 4F	PŠ268
Monograptus havliceki	Štorch (1998), Pl. 8, fig. 2; Text-fig 7, fig. 2	PŠ793
Monograptus havliceki	Štorch (1998), Pl. 8, fig. 1	PŠ760
Monograptus havliceki	Štorch (1988), Pl. XI, fig. 1, text. fig. 4A; Pl. XI, fig. 4	PŠ269
Monograptus havliceki	?torch (1998), Pl. 9, fig. 3	PŠ865

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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]