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

Rickardsograptus parajanus (Štorch, 1983)	AD Štorch (1983a)	PŠ53
Rickardsograptus parajanus (Štorch, 1983)	Štorch (1983a), PL. 4, fig. 1; Text-fig. 3B	PŠ55
Rickardsograptus parajanus (Štorch, 1983)	AD Štorch (1983a)	PŠ95
Rickardsograptus parajanus (Štorch, 1983)	AD Štorch (1983a)	PŠ50
Rickardsograptus parajanus (Štorch, 1983)	AD Štorch (1983a)	PŠ49
Rivagraptus bellulus	Štorch (1998), Pl. 6, fig. 4; Text-fig. 4, fig. 9A	PŠ787
Rivagraptus bellulus		PŠ735
Rivagraptus bellulus		PŠ862
Rivagraptus bellulus		PŠ790
Rivagraptus bellulus	Štorch (1998), Pl. 6, fig. 6; Fig. 4, Fig. 9B	PŠ857
Rivagraptus bellulus	Štorch (1998), Pl. 6, fig. 5	PŠ830
Rivagraptus cyperoides	AD, Štorch (1985)	PŠ153
Rivagraptus cyperoides	AD, Štorch (1985)	PŠ165
Rivagraptus cyperoides	AD, Štorch (1985)	PŠ22
Rivagraptus cyperoides	AD, Štorch (1985)	PŠ152
Rivagraptus cyperoides	Štorch (1985), Pl. I, fig. 4, text. fig. 2G (PŠ 21/1); Pl. I, fig. 1 (PŠ 21/2)	PŠ21
Rivagraptus cyperoides	Štorch (1985), Pl. 1, fig. 2, text. fig. 2F	PŠ163
Rivagraptus rozmanae	Štorch (1998), Text-fig. 4, fig. 7 (kus ozn. jako 1)	PŠ784
Rivagraptus sentus		PŠ784
Rivagraptus		RH143

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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]