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

Ptilograptus glomeratus		XA333
Ptilograptus glomeratus		XA331
Ptilograptus glomeratus	Kraft (1975), Pl. VII, fig. 7, text. fig. 5b	XA367
Ptilograptus		MD301
Ptilograptus		FN12
Ptilograptus		MD139
Ptilograptus		SZ213
Rastrites abbreviatus		PŠ296
Rastrites abbreviatus	Štorch a Loydell (1992), fig. 8E, 7C	PŠ293
Rastrites abbreviatus		PŠ449
Rastrites approximatus	Štorch (1998), Pl. 14, fig. 3; Text-fig. 11, fig 5B, E	PŠ829
Rastrites approximatus		PŠ843
Rastrites approximatus	Štorch (1998), Pů. 14, fig. 1	PŠ824
Rastrites approximatus	Štorch (1998), Pl. 15, fig. 5; text-fig. 11, fig. 5C	PŠ719
Rastrites approximatus		PŠ841
Rastrites approximatus	Sun et al. (2022), Fig. 3C	PŠ4320
Rastrites approximatus	Sun et al. (2022), Fig. 3A	PŠ4321
Rastrites approximatus	Sun et al. (2022), Fig. 7I	PŠ4322
Rastrites approximatus		PŠ802
Rastrites approximatus	Štorch (1998), Pl. 14, fig. 8a; Text-fig. 11, fig. 5D	PŠ712

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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]