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Actinopterygii (Actinopterygians)

      The Actinopterygii or ray-finned fishes constitute a class or sub-class of the bony fishes. The ray-finned fishes are so called because they possess lepidotrichia or "fin rays", their fins being webs of skin supported by bony or horny spines ("rays"), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii which also, however, possess lepidotrichia. These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). In terms of numbers, actinopterygians are the dominant class of vertebrates, comprising nearly 96% of the 25,000 species of fish. They are ubiquitous throughout fresh water and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from Paedocypris, at 8 millimetres, to the massive Ocean Sunfish, at 2,300 kilograms (5,100 lb), and the long-bodied Oarfish, to at least 11 metres.
The earliest known fossil Actinopterygiian is Andreolepis hedei, dating back 420 million years (Late Silurian). This microvertebrate has been uncovered in Russia, Sweden, and Estonia. Traditionally three grades of actinopterygians have been recognised: the Chondrostei, Holostei, and Teleostei. Some morphological evidence suggests that the second is paraphyletic and should be abandoned; however, recent work based on more complete sampling of fossil taxa, and also an analysis of DNA sequence data from the complete mitochondrial genome, supports its recognition. Nearly all living bony fishes are teleosts.

Source: http://en.wikipedia.org/wiki/Actinopterygii

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p5042
Amblypterus p5042
p4440
Amblypterus p4440
PB447a
Clupeomorpha PB447
PB447b
Clupeomorpha PB447
XB769a
Halec sternbergi Agassiz, 1844 XB769
XB769
Halec sternbergi Agassiz, 1844 XB769
XB771
Hoplopteryx lewesiensis (Mantell, 1822) XB771
p6134
Palaeoniscus reussi p6134
p6134b
Palaeoniscus reussi p6134
p6134a
Palaeoniscus reussi p6134
p6137
Paleoniscus angustus p6137
p6139
Paleoniscus luridus p6139
p6138
Paleoniscus obliquus p6138
p6135
Paleoniscus rohani p6135
p4891
Perca uraschista p4891
p4890
Perca uraschista p4890
p4892
Perca uraschista p4892
XB770
Teleostei indet. XB770
  

In the Virtual Museum there are total 232 samples

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