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Barameda

Barameda
Temporal range: 340–299 Ma
Carboniferous
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sarcopterygii
Order: Rhizodontida
Family: Rhizodontidae
Genus: Barameda
Species
  • B. decipiens
  • B. mitchelli

Barameda (Ancient Greek, "Heavy Guardian") is a genus of rhizodont lobe-finned fish which lived during the Carboniferous period in Australia. 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 22 centimetres (8.7 in) 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 20 feet (6.1 m), 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.

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.


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