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

Metaclimacograptus hughesi		PŠ732
Metaclimacograptus hughesi		PŠ744
Metaclimacograptus	Štorch, (2001), Pl. II, fig. 7, text. fig. 7, fig. 4	PŠ1037
Metaclimacograptus	Štorch, (2001), Pl. II, fig. 4 (b); text. fig. 7; fig. 2 (b)	PŠ1060
Metaclimacograptus	Štorch (2001), Pl. II, fig. 8	PŠ1033
Metaclimacograptus	Štorch (2001), text. fig. 7, fig. 1	MŠ11654
Monoclimacis chuchlensis		PŠ605
Monoclimacis chuchlensis		PŠ487
Monoclimacis chuchlensis		PŠ484
Monoclimacis crenularis		PŠ834
Monoclimacis crenularis	Štorch (1998), Pl. 9, fig. 2; Text-fig. 6, fig. 3	PŠ697
Monoclimacis crenulata (Elles & Wood, 1911)		BB6990
Monoclimacis crenulata (Elles & Wood, 1911)		BB6986
Monoclimacis flumendosae		BB776
Monoclimacis fumendosae		BB623
Monoclimacis griestoniensis (Nicholson, 1850)		BB6988
Monoclimacis griestoniensis (Nicholson, 1850)		BB6994
Monoclimacis		BB613
Monoclimacis		RH75
Monoclimacis		XB825

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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]