Erpetonyx is an extinct genus of bolosaurian parareptile from the Gzhelian stage of the Carboniferous period, with a single known species: Erpetonyx arsenaultorum. It is known from a single articulated and mostly complete specimen from Prince Edward Island in Canada. Phylogenetics has predicted that parareptiles first evolved in the Carboniferous, parallel to eureptiles ("true reptiles"). However, Hylonomus, the oldest eureptile known from fossil evidence, lived millions of years before parareptiles appeared in the fossil record. The discovery of Erpetonyx helped to shorten this gap between parareptile and eureptile fossils, as Erpetonyx lived in the Late Carboniferous and is one of the oldest known parareptiles (though Carbonodraco is now known to be older). However, it was not closely re
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| - Erpetonyx (en)
- Erpetonyx (de)
- Erpetonyx (es)
- Erpetonyx (nl)
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| - Erpetonyx ist eine relativ basale Gattung der Parareptilien. Die Überreste der bislang einzigen beschriebenen Art, Erpetonyx arsenaultorum, entstammen der Cape-Egmont-Formation des jüngsten Oberkarbons (Gzheliums) von Prince Edward Island im Südosten Kanadas. Mit diesem Alter gilt Erpetonyx als das älteste zurzeit bekannte Parareptil und einer der ältesten bekannten Sauropsiden. (de)
- Erpetonyx es un género extinto de pararreptiles con una única especie conocida Erpetonyx arsenaultorum, que vivió durante la última etapa del Carbonífero (Gzheliense) en lo que hoy es la isla del Príncipe Eduardo (Canadá). Se conoce por el holotipo, ROM 55402, un esqueleto casi completo y parcialmente articulado de un individuo adulto. Se trata del pararreptil más antiguo conocido y es un indicador de que la diversidad de los reptiles en el Carbonífero era mucho mayor de lo encontrado hasta ahora. (es)
- Erpetonyx is an extinct genus of bolosaurian parareptile from the Gzhelian stage of the Carboniferous period, with a single known species: Erpetonyx arsenaultorum. It is known from a single articulated and mostly complete specimen from Prince Edward Island in Canada. Phylogenetics has predicted that parareptiles first evolved in the Carboniferous, parallel to eureptiles ("true reptiles"). However, Hylonomus, the oldest eureptile known from fossil evidence, lived millions of years before parareptiles appeared in the fossil record. The discovery of Erpetonyx helped to shorten this gap between parareptile and eureptile fossils, as Erpetonyx lived in the Late Carboniferous and is one of the oldest known parareptiles (though Carbonodraco is now known to be older). However, it was not closely re (en)
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| - Modesto et al., 2015 (en)
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| - Illustration of the holotype fossil (en)
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type species
| - Erpetonyx arsenaultorum (en)
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type species authority
| - Modesto et al., 2015 (en)
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| - Erpetonyx ist eine relativ basale Gattung der Parareptilien. Die Überreste der bislang einzigen beschriebenen Art, Erpetonyx arsenaultorum, entstammen der Cape-Egmont-Formation des jüngsten Oberkarbons (Gzheliums) von Prince Edward Island im Südosten Kanadas. Mit diesem Alter gilt Erpetonyx als das älteste zurzeit bekannte Parareptil und einer der ältesten bekannten Sauropsiden. (de)
- Erpetonyx is an extinct genus of bolosaurian parareptile from the Gzhelian stage of the Carboniferous period, with a single known species: Erpetonyx arsenaultorum. It is known from a single articulated and mostly complete specimen from Prince Edward Island in Canada. Phylogenetics has predicted that parareptiles first evolved in the Carboniferous, parallel to eureptiles ("true reptiles"). However, Hylonomus, the oldest eureptile known from fossil evidence, lived millions of years before parareptiles appeared in the fossil record. The discovery of Erpetonyx helped to shorten this gap between parareptile and eureptile fossils, as Erpetonyx lived in the Late Carboniferous and is one of the oldest known parareptiles (though Carbonodraco is now known to be older). However, it was not closely related to ancestral parareptiles, so its discovery also indicated that the initial diversification of parareptiles occurred earlier in the Carboniferous. Erpetonyx was a small reptile, with the entire skeleton about 20 to 25 centimeters (7.9 to 9.8 inches) in length. It was likely carnivorous, and could be characterized by a variety of skeletal features, including a relatively elongated body and large claws with powerful tendon attachment points. (en)
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