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Barameda
''Barameda'' (Ancient Greek, "Heavy Guardian") is a genus of rhizodont lobe-finned fish which lived during the Carboniferous period in Australia.〔''Sourcebook of Biological Names and Terms'', 1944, ISBN 9781258302863〕 While many Paleozoic sarcopterygan fishes are identified by their fleshy lobe fins, fused skull cases and basal qualities, the primary identifier of most ''Barameda'' fossils comes from their large rooted fangs, usually in length, and where the order Rhizodontida and family Rhizodontidae gain their name. The largest member of this genus, ''Barameda decipiens'', reached an estimated length of over , rivaling another large rhizodont in size, ''Rhizodus''. ''Barameda'' were obligate carnivores, relying on the meat of Carboniferous ammonites, orthocones, freshwater invertebrates, early fish and early tetrapods to sustain its massive length. ==Description== The ''Barameda'' has an extremely elongated and thick body typical of Carboniferous rhizodonts, built for powerful swimming, and out-powering any prey larger than itself. It is covered with durable cosmoid scales all along its body, with thick bony plates covering its head and operculum (gill flaps), a tightly fused Skull roof, and extremely prominent, sharp fangs, devoid of serrations or cutting edges. It had an advanced lateral line system that was elaborated along its pectoral girdle, larger pectoral fins than pelvic fins, with deeply over-lapping scales along its fins, turning the pectoral fin into a large paddle. Its anal fins and secondary dorsal fins form a functional part of its tail.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Barameda」の詳細全文を読む
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