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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

Stimulograptus sedqwickiiŠtorch (2001, text. fig. 8, fig. 2 PŠ1030
Stimulograptus sedqwickiiŠtorch (2001), Pl. II, fig. 6, fig. 9, tex. fig. 8, fig. 3 MŠ11614
Stomatograptus grandis PŠ574
Streptograptus crispus (Lapworth) BB756
Streptograptus crispus (Lapworth)Štorch (1994a), Fig. 6F ; Štorch (2023), Fig. 15D PŠ453
Streptograptus exiguus exiguus p4532
Streptograptus exiguus exiguus p416
Streptograptus exiguus exiguus p4536
Streptograptus exiguus exiguus p1445
Streptograptus flexuosus (Tullberg) BB759
Streptograptus nodifer (Törnquist, 1881) BB6985
StreptograptusŠtorch (2023), Fig. 12E PŠ4398
StreptograptusŠtorch (1998), Pl. 8, fig. 5; Text-fig. 7, fig. 8A (kus 1); Pl. 19, fig. 4, text-fig. 7, fig. 8B (2) PŠ838
Streptograptus storchi Loydell BB756
Streptograptus wimani (Bouèek, 1932)Štorch (2023), Fig. 15N PŠ4399
Streptograptus wimani (Bouèek, 1932)Štorch (2023), Fig. 18A PŠ241
Styracograptus Štorch et al., 2011 PB1111
Testograptus CW771
Testograptus testisManda et al. (2019) Fig. 7E PŠ3898
Testograptus testisAD Manda et al. (2019) PŠ3897

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]