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

Spirograptus turriculatus turriculatus		p4539
Spirograptus turriculatus turriculatus		PŠ364
Spirograptus turriculatus turriculatus		PŠ369
Spirograptus turriculatus turriculatus		PŠ363
Spirograptus turriculatus turriculatus		PŠ368
Spirograptus turriculatus turriculatus		p3820
Spirograptus turriculatus turriculatus		PŠ366
Spirograptus turriculatus turriculatus		PŠ370
Stelechocladia Počta, 1894		PB698
Stimulograptus halli	Přibyl a Štorch (1983), Pl. 1, fig. 1, 5	PŠ107
Stimulograptus halli	Přibyl a Štorch (1983), Pl. 1, fig. 6 (108/3); text. fig. 2B (108/3)	PŠ108
Stimulograptus halli	Přibyl a Štorch (1983), Pl. 1, fig. 3, text. fig. 2A	PŠ106
Stimulograptus halli		BB778
Stimulograptus halli	Štorch (2023), Fig. 12O	PŠ4353
Stimulograptus sedgwicki	Štorch (2001), Pl. II, fig. 12; text. fig. 8; fig. 1	PŠ1042
Stimulograptus sedgwickii	Přibyl a Štorch (1983), Pl. 2, fig. 2	PŠ138
Stimulograptus sedgwickii	Přibyl a Štorch (1983), Pl. 1, fig. 2 (128/1), fig. 4 (128/2)	PŠ128
Stimulograptus sedgwickii	Přibyl a Štorch (1983), Pl. 2, fig. 3 (137/2)	PŠ137
Stimulograptus sedgwickii	Štorch (2023), Fig. 10P	PŠ4363
Stimulograptus sedgwickii	Štorch &Frýda (2012) fig. 5g	PŠ1011

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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]