Ray-finned fishes, class Actinopterygii, differ from lobe-finned fishes in that their fins consist of webs of skin supported by spines ( " rays " ) made of bone or horn.
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A subclass of the Osteichthyes, the ray-finned fishes ( Actinopterygii ), have become the dominant group of fishes in the post-Paleozoic and modern world, with some 30, 000 living species.
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The FAM214A protein has a significant number of orthologs across a large number of taxonomic groups including Mammalia, Aves, Reptilia, Amphibia, Actinopterygii, Echinoidea, Insecta, Trematoda, Crustacea, Tricoplacia, Anthozoa, and Eurotiomycetes.
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Professor Nieuwenhuys graduated from the Faculty of Medicine of the University of Amsterdam in 1955 and in 1960 obtained a PhD at the same institute with the dissertation " Het Telencephalon der Actinopterygii " . [ http : / / permalink . opc . uva . nl / item / 002865050 He is author of important works in neuroanatomy including The Central Nervous System Of The Vertebrates and The Human Central Nervous System.
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