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

Barrandeograptus pulchellus		JH105
Barrandeograptus pulchellus		JH122
Bohemograptus bohemicus		MN9
Bohemograptus bohemicus		JK8355
Bohemograptus bohemicus		JK8354
Bohemograptus bohemicus tenuis		PŠ630
Bohemograptus bohemicus tenuis		PŠ646
Bohemograptus bohemicus tenuis	Štorch (1995), fig. 3D, Pl. II, fig. 5, (PŠ 676/3)	PŠ676
Bohemograptus bohemicus tenuis		PŠ654
Bohemograptus bohemicus tenuis	Štorch (1995), fig. 4C (PŠ 642/2); Pl. II, fig. 2	PŠ642
Bohemograptus bohemicus tenuis	Štorch (1995), fig. 4C (PŠ 634/3); Pl. II, fig. 1	PŠ634
Bohemograptus bohemicus tenuis		PŠ678
Bohemograptus bohemicus tenuis	Štorch (1995), fig. 3G (PŠ 621/2)	PŠ621
Bohemograptus bohemicus tenuis	Štorch (1995), fig. 3K (PŠ 623/2)	PŠ623
Bohemograptus bohemicus tenuis		PŠ611
Bohemograptus bohemicus tenuis	Štorch (1995), fig. 3J; Pl. III, fig. 7 (PŠ 632/1), fig. 4B (PŠ 632/2)	PŠ632
Bohemograptus bohemicus tenuis		PŠ680
Bohemograptus bohemicus tenuis	Štorch (1995), fig. 3M (PŠ 624/2); Pl. I, fig. 1	PŠ624
Bohemograptus garratti		PŠ612
Bohemograptus garratti	Štorch (1995), Fig. 3A, Pl. 1, fig. 5	PŠ656

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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]