Bichir | 水產百科網
Bichirs/ˈbɪʃɪərz/andthereedfishcomprisePolypteridae/pɒlɪpˈtɛrɪdiː/,afamilyofarchaic-lookingray-finnedfishesandtheonlyfamilyintheorderPolypteriformes/pəˈlɪptərɪfɔːrmiːz/.AllthespeciesoccurinfreshwaterhabitatsintropicalAfrica
Family of archaic-looking ray-finned fishes
Bichirs and the reedfish comprise Polypteridae , a family of archaic ray-finned fishes and the only family in the order Polypteriformes .[2]
All the species occur in freshwater habitats in tropical Africa and the Nile River system, mainly swampy, shallow floodplains and estuaries.
Cladistia, polypterids and their fossil relatives, are considered the sister group to all other extant ray-finned fishes (Actinopteri).[3][4] They likely diverged from Actinopteri around 400 million years ago, during the Devonian, but recognisable polypterid remains do not appear until around 100 million years ago, during the early Late Cretaceous in South America and Africa.[5]
Anatomy[edit]Polypterids are elongated fish with a unique series of dorsal finlets whic...
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【安索琪恐龍Polypterus ansorgii】多鰭魚科
水產分類:台灣常見的大陸水產品圖說中文名稱:安索琪恐龍學名:Polypterusansorgii科別名稱:多鰭魚科命名學者:Boulenger1910