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

Polonograptus podoliensis australis	Štorch (1995) fig. 6K	PŠ610
Polonograptus podoliensis australis	Štorch (1995) Fig. 6H; Pl. 3, fig. 4 (PŠ 625/1)	PŠ625
Polonograptus podoliensis australis	Štorch (1995) Pl. 2, fig. 6	PŠ661
Polonograptus podoliensis podoliensis		YA2831
Polonograptus podoliensis podoliensis	Štorch (1995), Fig. 6C; Pl. 3, fig. 1	PŠ617
Polonograptus podoliensis podoliensis		PŠ666
Polonograptus podoliensis podoliensis		PŠ674
Polonograptus podoliensis podoliensis	Štorch (1995), Fig. 6E	PŠ609
Polonograptus podoliensis podoliensis	Štorch (1995), Fig. 6G; Pl. 2, fig. 3 (kus 620/1); Štorch (1995), Fig. 6D, Pl. 3, fig. 3	PŠ620
Polonograptus podoliensis podoliensis	Štorch (1995), Fig. 6B; Pl. 3, fig. 6	PŠ671
Polonograptus podoliensis podoliensis		PŠ619
Pribylograptus argutus		PŠ131
Pribylograptus argutus	Štorch (1988), Pl. V, fig. 3, text. fig. 5c, b	BB633
Pribylograptus argutus	Štorch (1988), Pl. V, fig. 1	PŠ247
Pribylograptus argutus	Štorch (1988), Pl. V, fig. IV	PŠ263
Pribylograptus argutus		PŠ133
Pribylograptus argutus		BB617
Pribylograptus argutus	Štorch (1988), Pl. V. fig. 2, text. fig. 3A	PŠ211
Pribylograptus argutus	Štorch (1988), text. fig. 5D	BB640
Pribylograptus argutus	Štorch (1988), Pl. V. fig. 2, text. fig. 3A	PŠ212

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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]