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

Pentalograptus		BB577
Pentalograptus tenuis		BB588
Pernerograptus revolutus		BB605
Pernerograptus revolutus		BB627
Pernerograptus revolutus revolutus		p3422
Pernerograptus revolutus revolutus		p3440
Pernerograptus revolutus revolutus		p377
Petalograptus ovatoelongatus		BB629
Petalograptus ovatoelongatus	Štorch (1998), Pl. 2, fig. 1; Text-fig. 5, fig. 3B	PŠ746
Petalograptus ovatoelongatus	Štorch (1998), Pl. 4, fig. 3; Text-fig. 5, fig. 3A	PŠ811
Petalograptus		p3827
Petalograptus		PŠ240
Petalolithus altissimus		p3430
Petalolithus clandestinus	Štorch (2001), Pl. I, fig. 4; text. fig. 7; fig. 7, 8	PŠ11624
Petalolithus clandestinus	Štorch & Frýda (2012) fig. 5h	PŠ1012
Petalolithus clandestinus	Štorch (2001), Pl. I, fig. 3, text. fig. 7, fig. 10	MŠ11622
Petalolithus clandestinus		MŠ11657
Petalolithus clandestinus	Štorch (2001), Pl. I, fig. 2, text. fig. 7	MŠ11633
Petalolithus clandestinus	Štorch (2001), Pl. II, fig. 2, text. fig. 7, fig. 13	PŠ1028
Petalolithus clandestinus	Štorch, (2001), Pl. I, fig. 5	PŠ1040

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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]