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Editorial Reviews - Carboniferous Fish From the Publisher Chapters: Helicoprion, Rhizodontidae, Edaphodon, Xenacanthus, Edestus, Harpagofututor, Stethacanthus, Coelacanthopsis, Tristichopteridae, Acanthodes, Xenacanthida, Orthacanthus, Letognathus, Listracanthus, Delphyodontos, Glikmanius, Bradyodonti, Orodus, Janassa, Belantsea Montana, Cobelodus, Petalodontiformes, Platysomus, Diplocercides, Canobius, Deltoptychius, Tristychius, Caridosuctor, Iniopteryx, Allenypterus, Akmonistion, Hadronector, Megalichthys, Polyosteorhynchus, Conchopoma, Rhabdoderma, Rhabdodermatidae, Barameda, Xenacanthidae, Megalichthyidae, Hadronectoridae, Diplocercidae, Dumfregia, Synaptolus, Caseodus, Strepsodus, Archichthys, Megistolepis, Mahalalepis, Sphenacanthus, Megapomus, Ctenodus, Screbinodus. Excerpt: Acanthodes (meaning spiny base or thorny base ) is an extinct genus of spiny shark . Fossils have been found in Europe, North America, and Australia.Compared with other spiny sharks, Acanthodes was relatively large, at 30 centimetres (12 in) long. The genus had no teeth , instead having tooth-like spikes on its gills . Because of this, it is presumed to have been a filter feeder , filtering plankton from the water. It also had fewer spines than many of its relatives. Each of the paired pectoral and pelvic fins had a spine, as did the single anal and dorsal fins , giving it a total of just six, less than half that of many other species. Notes A hyperlinked version of this chapter is at Akmonistion is an extinct genus of shark that lived in the Early Carboniferous . Its remains have been found in Scotland .Sources A hyperlinked version of this chapter is at Allenypterus is a genus of a prehistoric lobe-finned fish which lived during the Carboniferous period (Early Pennsylvanian to Late Mississippian , around 354290 million years ago ). Fossils have been discovered in ... Synopsis Chapters: Helicoprion, Rhizodontidae, Edaphodon, Xenacanthus, Edestus, Harpagofututor, Steth
