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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

Rastrites approximatus p374
Rastrites approximatusŠtorch (1998), Pl. 15, fig. 1; Text-fig 11, fig. 5A PŠ765
Rastrites carnicusŠtorch a Loydell (1992), fig. 5D PŠ297
Rastrites carnicus PŠ334
Rastrites carnicusŠtorch a Loydell (1992), fig. 5E PŠ446
Rastrites distans Lapworth BB752
Rastrites distans LapworthŠtorch a Loydell (1992), fig. 6E BB657
Rastrites distans Lapworth PŠ337
Rastrites distans Lapworth PŠ304
Rastrites distans LapworthŠtorch a Loydell (1992), fig. 6A, 9A BB665
Rastrites distans Lapworth PŠ338
Rastrites distans LapworthŠtorch a Loydell (1992), fig. 6B, 9H PŠ448
Rastrites distans Lapworth PŠ447
Rastrites distans LapworthŠtorch a Loydell (1992), fig. 6F PŠ295
Rastrites distans Lapworth p1456
Rastrites distans Lapworth BB661
Rastrites distans LapworthŠtorch a Loydell (1992), fig. 9D PŠ 302/1 PŠ302
Rastrites distans Lapworth PŠ341
Rastrites distans Lapworth PŠ342
Rastrites distans Lapworth BB667

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