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Pachycormiformes is an extinct order of marine ray-finned fish known from the Early Jurassic to the end of the Cretaceous. It only includes a single family, Pachycormidae. They were characterized by having serrated pectoral fins (though more recent studies demonstrated that fin shape diversity in this group was high), reduced pelvic fins and a bony rostrum. Their exact relations with other fish are unclear, but they are generally considered to be teleosteomorphs, more closely related to teleosts than to Holostei. Pachycormiformes are morphologically diverse, containing both tuna and swordfish-like carnivorous forms, as well as edentulous suspension-feeding forms, with the latter including the largest ray finned fish known to have existed, Leedsichthys, with an estimated maximum length of 1

AttributesValues
rdf:type
rdfs:label
  • Pachycormiformes (en)
  • Paquicormiformes (ca)
  • Pachycormiformes (es)
  • Pachycormiformes (fr)
  • Pachycormiformes (it)
  • Pachycormiformes (nl)
  • Pachycormiformes (pt)
  • 厚莖魚目 (zh)
rdfs:comment
  • Els paquicormiformes (Pachycormiformes) són un ordre extint de peixos actinopterigis dels sediments Mesozoics d'Euràsia i d'Amèrica. Es caracteritzaven per tenir les aletes pectorals serrades i les pèlviques reduïdes, i un rostre ossificat. La seva relació amb altres ordres és incerta. (ca)
  • Les Pachycormiformes forment un ordre éteint de poissons ayant vécu au Mésozoïque en Eurasie et sur les continents américains. La place taxonomique des Pachycormiformes n'est pas déterminée de manière consensuelle . Ils sont généralement placés dans ce dernier groupe, comme des téléostéens très basaux. Dans ce cas, le célèbre genre Leedsichthys serait le plus grand téléostéen connu. (fr)
  • I pachicormiformi (Pachycormiformes) sono un gruppo di pesci ossei estinti, vicini all'origine dei teleostei. Vissero tra il Giurassico inferiore e il Cretaceo superiore (circa 195 - 85 milioni di anni fa) e i loro resti fossili sono stati ritrovati in tutti i continenti, con l'eccezione di Africa e Antartide. (it)
  • 厚茎鱼目(学名:Pachycormiformes),是從歐亞大陸和美洲大陸的中生代沉積物中發現的一類已滅絕輻鰭魚。其特徵是具有鋸齒狀胸鰭,骨盆鰭變小。其與其他魚類的關係尚不清楚。 一些論文來源也將乞丐魚科放在這裡,但乞丐魚科似乎更為高等的真骨類。 (zh)
  • Pachycormiformes is an extinct order of marine ray-finned fish known from the Early Jurassic to the end of the Cretaceous. It only includes a single family, Pachycormidae. They were characterized by having serrated pectoral fins (though more recent studies demonstrated that fin shape diversity in this group was high), reduced pelvic fins and a bony rostrum. Their exact relations with other fish are unclear, but they are generally considered to be teleosteomorphs, more closely related to teleosts than to Holostei. Pachycormiformes are morphologically diverse, containing both tuna and swordfish-like carnivorous forms, as well as edentulous suspension-feeding forms, with the latter including the largest ray finned fish known to have existed, Leedsichthys, with an estimated maximum length of 1 (en)
  • Pachycormiformes são uma ordem extinta de peixes marinhos com nadadeiras com raios, conhecidos em depósitos mesozóicos da Eurásia, Américas e Antártica. Eles foram caracterizados por terem barbatanas peitorais serrilhadas (embora estudos mais recentes tenham demonstrado que a diversidade da forma das barbatanas neste grupo era alta), Pachycormiformes são unidos por "um osso composto (rostrodermethmoid) formando a borda anterodorsal da boca; um processo coronóidereduzido da mandíbula; ausência de supraorbitais associados a uma dermosfenofótica definindo a margem dorsal da órbita; dois grandes ossos suborbitais semelhantes a placas posteriores aos infraorbitais; barbatanas peitoraislongas e esbeltas; ramificação assimétrica da lepidotrichiade barbatana peitoral; sobreposição considerável dos (pt)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Leedsichthys_problematicus.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Protosphyraena_perniciosa.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Pachycormus_bollensis_-_Naturmuseum_Senckenberg_-_DSC02210_(cropped).jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Bonnerichthys_gladius.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Ohmdenia_Illustration.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Orthocormus_cornutus_1.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Pachycormidae_assortment.png
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
type genus
  • Pachycormus (en)
type genus authority
  • Agassiz, 1833 (en)
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