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Neopterygii

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Neopterygii

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Also known as Neopterygian, Neopterygians

Neopterygii (from Ancient Greek νέος (néos), meaning "new", and πτέρυξ (ptérux), meaning "wing, fin") is a subclass of ray-finned fish (Actinopterygii). Neopterygii includes the Holostei and the Teleostei, of which the latter comprise the vast majority of extant fishes, and over half of all living vertebrate species. While living holosteans include only freshwater taxa, teleosts are diverse in both freshwater and marine environments. Many new species of teleosts are scientifically described each year.

Species

新鰭亞綱是輻鰭魚的一個類群,在演化上和早期的輻鰭魚相比只有少些的差異。新鰭亞綱出現在二疊紀中期(恐龍出現之前)的一些地方上。新鰭亞綱是魚類中非常成功的一個類群,因為它們可以游得比它們的祖先更快,鱗片和骨頭也開始變輕,連下顎也變得更有力量且更有效率。 目录 1 分類 1.1 种系发生学 1.2 传统分类 2 参考文献 分類 种系发生学 依照2017年《硬骨鱼支序分类法》,本亚纲与其它硬骨鱼的演化关系如下[1][2]: 硬骨鱼高纲 Osteichthyes 辐鳍鱼总纲 Actinopterygii 辐鳍鱼纲 Actinopteri 新鳍亚纲 Neopterygii 真骨下纲 Teleostei 全骨下纲 Holostei 软质亚纲 Chondroste 腕鳍鱼纲 Cladistia 肉鳍鱼总纲 Sarcopterygii 肺鱼四足纲 Dipnotetrapodomorpha 肺鱼亚纲 Dipnomorpha 四足形亚纲 Tetrapodomorpha 腔棘魚綱 Coelacanthimorpha 軟骨魚綱 Chondrichthyes (外类群) 传统分类 在传统分类系统中,大致包含以下各目: 新鰭亞綱(Neopterygii) 全骨下綱(Holostei) 雀鱔目(Lepisosteiformes) 弓鰭魚目(Amiiformes) 真骨下綱 (Teleostei) 骨舌魚總目(Osteoglossomorpha) 骨舌魚目(Osteoglossiformes) 月眼魚目(Hiodontiformes) 海鰱總目(Elopomorpha) 海鰱目Elopiformes 北梭魚目Albuliformes 背棘魚目Notacanthiformes 鰻鱺目Anguilliformes 囊鰓鰻目Saccopharyngiformes 鯡形總目(Clupeomorpha) 鯡形目(Clupeiformes) 骨鰾總目(Ostariophysi) 鼠鱚目(Gonorynchiformes) 鯉形目(Cypriniformes) 脂鯉目(Characiformes) 裸背魚目(Gymnotiformes) 鯰形目(Siluriformes) 原棘鰭總目(Protacanthopterygii) 鮭形目(Salmoniformes) 狗魚目(sociformes) 胡瓜魚目(Osmeriformes) 巨口魚總目(Stenopterygii) 辮魚目(Ateleopodiformes) 巨口魚目(Stomiiformes) 圓鱗總目(Cyclosquamata) 仙女魚目(Aulopiformes) 燈籠魚總目(Scopelomorpha) 燈籠魚目(Myctophiformes) 月魚總目(Lampridiomorpha) 月魚目(Lampriformes) 鬚鰃總目(Po

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Museum specimens

Specimen records
1
Collections
UAM
Recorded in
United States

Wikidata facts

Instance of
clade
Parent taxon
Actinopteri
Image
Kaimanfische (Lepisosteus).jpg
Show 3 more facts
taxon name
Neopterygii
Commons category
Neopterygii
topic's main category
Category:Neopterygii
Sources (1)

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Encyclopedic overview

3 sections
Contents
  • Evolution and diversity
  • Classification
  • References

Neopterygii (from Ancient Greek νέος (néos), meaning "new", and πτέρυξ (ptérux), meaning "wing, fin") is a subclass of ray-finned fish (Actinopterygii). Neopterygii includes the Holostei and the Teleostei, of which the latter comprise the vast majority of extant fishes, and over half of all living vertebrate species. While living holosteans include only freshwater taxa, teleosts are diverse in both freshwater and marine environments. Many new species of teleosts are scientifically described each year.

The potentially oldest known neopterygian is the putative "semionotiform" Acentrophorus varians from the Middle Permian of Russia; however, one study incorporating morphological data from fossils and molecular data from nuclear and mitochondrial DNA, places this divergence date at least 284 mya (million years ago), during the Artinskian stage of the Early Permian. Another study suggests an even earlier split (360 myr ago, near the Devonian-Carboniferous boundary).

Excerpted from Wikipedia’s “Neopterygii” article, available under the CC BY-SA 4.0 licence.

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