| dbo:abstract |
Els ptilodòntids (Ptilodontidae) són una família de mamífers de l'extint ordre Multituberculata. Els representants són coneguts des del Cretaci superior i Paleocè a Nord-amèrica. La família Ptilodontidae originalment denominada Ptilodontinae i classificat com a subfamília per Edward Drinker Cope en 1887. Va ser modificat per Gregory i Simpson en 1926 al seu estat actual. A més, Cope erròniament, va classificar al gènere Ptilodus com un marsupial. Ell la va cridar originalment Chirox, i ho va col·locar en la nova família Chirogidae. S'ha reclassificat i Chirogidae és ara oficialment un sinònim de Ptilodontidae. (ca) Los ptilodóntidos (Ptilodontidae) son una familia de mamíferos del extinto orden Multituberculata. Los representantes son conocidos desde el Cretácico superior y Paleoceno en América del Norte. La familia Ptilodontidae originalmente denominada Ptilodontinae y clasificado como subfamilia por Edward Drinker Cope en 1887. Fue modificado por Gregory y Simpson en 1926 a su estado actual.[cita requerida] Además, Cope, erróneamente, clasificó al género Ptilodus como un marsupial. Él la llamó originalmente , y lo colocó en la nueva familia . Se ha reclasificado y Chirogidae es ahora oficialmente un sinónimo de Ptilodontidae. (es) Ptilodontidae is a family of primitive mammals within the extinct order Multituberculata. Representatives are known from the Upper Cretaceous and Paleocene of North America. The Ptilodontidae family was originally named Ptilodontinae and classified as a subfamily by Edward Drinker Cope in 1887. It was amended by Gregory and Simpson in 1926 to its current status. In addition, Cope mistakenly classified the Ptilodus genus as a marsupial. He originally named it Chirox, and placed it in the new family Chirogidae in 1887. Since it has been reclassified, and Chirogidae is now officially a synonym of Ptilodontidae. One of the most outstanding features of this family of squirrel-like, arboreal mammals, was the peculiar shape of their last lower premolar. It was larger and more elongated than its neighbours, and its occlusive surface was formed into a serrated slicing blade. Most likely this tooth was used for crushing and opening seeds and nuts, but it is believed that the ptilodonts, like most small multituberculates, supplemented their diet with insects, worms, and fruits. (en) Ptilodontidae zijn een familie van uitgestorven zoogdieren uit de orde Multituberculata die leefden in het Laat-Krijt en Paleoceen. Uiterlijk hadden ze wel wat weg van eekhoorns, hoewel ze daaraan niet verwant zijn. (nl) |
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wiki-commons:Special:FilePath/Ptilodus_skull_BW.jpg?width=300 |
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https://web.archive.org/web/20091228145936/http:/home.arcor.de/ktdykes/ptilodon.htm http://home.arcor.de/ktdykes/ptilodon.htm |
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dbc:Paleocene_extinctions dbr:Ptilodus dbr:Scientific_classification dbr:Premolar dbr:Prochetodon dbr:Cretaceous dbc:Ptilodontoids dbr:Genus dbr:Occlusion_(dentistry) dbr:Edward_Drinker_Cope dbr:Multituberculata dbr:Mammal dbr:Baiotomeus dbc:Prehistoric_mammal_families dbr:Extinct dbr:North_America dbr:Paleocene dbc:Late_Cretaceous_first_appearances dbc:Taxa_named_by_Edward_Drinker_Cope dbr:Kimbetohia dbr:Marsupial dbr:Synonym_(taxonomy) dbr:Subfamily dbr:American_Naturalist dbr:Family_(taxonomy) |
| dbp:authority |
Cope, 1887 (en) |
| dbp:imageCaption |
Skull of Ptilodus (en) |
| dbp:subdivision |
Baiotomeus (en) Kimbetohia (en) Prochetodon (en) Ptilodus (en) |
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dbr:Genus |
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Ptilodontidae (en) |
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dbr:Family |
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| rdfs:comment |
Ptilodontidae zijn een familie van uitgestorven zoogdieren uit de orde Multituberculata die leefden in het Laat-Krijt en Paleoceen. Uiterlijk hadden ze wel wat weg van eekhoorns, hoewel ze daaraan niet verwant zijn. (nl) Els ptilodòntids (Ptilodontidae) són una família de mamífers de l'extint ordre Multituberculata. Els representants són coneguts des del Cretaci superior i Paleocè a Nord-amèrica. La família Ptilodontidae originalment denominada Ptilodontinae i classificat com a subfamília per Edward Drinker Cope en 1887. Va ser modificat per Gregory i Simpson en 1926 al seu estat actual. (ca) Los ptilodóntidos (Ptilodontidae) son una familia de mamíferos del extinto orden Multituberculata. Los representantes son conocidos desde el Cretácico superior y Paleoceno en América del Norte. La familia Ptilodontidae originalmente denominada Ptilodontinae y clasificado como subfamilia por Edward Drinker Cope en 1887. Fue modificado por Gregory y Simpson en 1926 a su estado actual.[cita requerida] (es) Ptilodontidae is a family of primitive mammals within the extinct order Multituberculata. Representatives are known from the Upper Cretaceous and Paleocene of North America. The Ptilodontidae family was originally named Ptilodontinae and classified as a subfamily by Edward Drinker Cope in 1887. It was amended by Gregory and Simpson in 1926 to its current status. (en) |
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Ptilodòntids (ca) Ptilodontidae (es) Ptilodontidae (nl) Ptilodontidae (en) |
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wiki-commons:Special:FilePath/Ptilodus_skull_BW.jpg |
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