Acanthodes is an extinct genus of spiny shark. Fossils have been found in Europe, North America, and Australia.
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| - Acanthodes is an extinct genus of spiny shark. Fossils have been found in Europe, North America, and Australia.
- El Acanthodes fue el primer pez con mandíbulas, tenía pequeño tamaño y muchas espinas.thumb|400px|Acanthodes Categoría:Peces Categoría:Peces con mandíbulas Categoría:Peces óseos Categoría:Acantodios Categoría:Fauna del Devónico
- Compared with other spiny sharks, Acanthodes was relatively large, at 30 centimetres (12 in) long. The genus had no teeth, instead gills. Because of this, it is presumed to have been a filter feeder, filtering plankton from the water. The Acanthodes has been found to have only a couple of skull bones. It was covered in scales that were cubical in shape.
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| - Acanthodes bronni from the Early Permian of Germany
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| - (Early Carboniferous to Early Permian)
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| - Compared with other spiny sharks, Acanthodes was relatively large, at 30 centimetres (12 in) long. The genus had no teeth, instead gills. Because of this, it is presumed to have been a filter feeder, filtering plankton from the water. The Acanthodes has been found to have only a couple of skull bones. It was covered in scales that were cubical in shape. 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. A fossil discovered near Hamilton, Kansas in the Upper Carboniferous Hamilton Formation, and published in 2014 as Acanthodes bridgei was so well-preserved that traces of its eye tissue were sufficient to establish that Acanthodes had both rod and cone photoreceptor cells, and thus profited from colour vision.
- Acanthodes is an extinct genus of spiny shark. Fossils have been found in Europe, North America, and Australia.
- El Acanthodes fue el primer pez con mandíbulas, tenía pequeño tamaño y muchas espinas.thumb|400px|Acanthodes Categoría:Peces Categoría:Peces con mandíbulas Categoría:Peces óseos Categoría:Acantodios Categoría:Fauna del Devónico
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