Elopocephala - AbsoluteAstronomy.com

Eukaryote

A eukaryote is an organism whose cells contain complex structures enclosed within membranes. Eukaryotes may more formally be referred to as the taxon Eukarya or Eukaryota. The defining membrane-bound structure that sets eukaryotic cells apart from prokaryotic cells is the nucleus, or nuclear...

> Metazoa > Chordata

Chordate

Chordates are animals which are either vertebrates or one of several closely related invertebrates. They are united by having, for at least some period of their life cycle, a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail...

> Craniata

Craniata

Craniata is a proposed clade of chordate animals that contains the Myxini , Petromyzontida , and Gnathostomata as living representatives...

> Vertebrata

Vertebrate

Vertebrates are animals that are members of the subphylum Vertebrata . Vertebrates are the largest group of chordates, with currently about 58,000 species described. Vertebrates include the jawless fishes, bony fishes, sharks and rays, amphibians, reptiles, mammals, and birds...

> Euteleostomi

Euteleostomi

Euteleostomi is a successful clade that includes more than 90% of the living species of vertebrates. Euteleostomes are also known as "bony vertebrates". Both major subgroups are successful today: Actinopterygii includes the majority of extant fish species, and Sarcopterygii includes the tetrapods...

> Actinopterygii

Actinopterygii

The Actinopterygii or ray-finned fishes constitute a class or sub-class of the bony fishes.The ray-finned fishes are so called because they possess lepidotrichia or "fin rays", their fins being webs of skin supported by bony or horny spines , as opposed to the fleshy, lobed fins that characterize...

> Neopterygii

Neopterygii

Neopterygii is a group of Actinopteri animals. Neopterygii means "new fins". There are only few changes during their evolution from the earlier actinopterygians. They appeared somewhere in the Late Permian, before the time of the dinosaurs. The Neopterygii is a very successful group of fishes,...

> Teleostei

Teleostei

Teleostei is one of three infraclasses in class Actinopterygii, the ray-finned fishes. This diverse group, which arose in the Triassic period, includes 20,000 extant species in about 40 orders; most living fishes are members of this group...

> Elopocephala
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Elopocephala is a group of teleostei

Teleostei

animals that contains:

Clupeocephala
- Euteleostei
  - Neognathi
  - Protacanthopterygii
    Protacanthopterygii
    Protacanthopterygii is a ray-finned fish taxon ranked as a superorder of the infraclass Teleostei. They inhabit both marine and freshwater habitat...
- Otocephala
  - Clupeomorpha
  - Ostariophysi
    Ostariophysi
    Ostariophysi is the second-largest superorder of fish. Members of this superorder are called ostariophysians. This diverse group contains almost 8,000 species, about 28% of known fish species in the world and 68% of freshwater species, and are present on all major continents except Antarctica...
Elopomorpha
Elopomorpha
The superorder Elopomorpha contains a variety of types of fishes that range from typical silvery colored fish-like species such as the tarpons and ladyfishes of the Elopiformes and the bonefishes of the Albuliformes, to the long and slender, smooth bodied eels of the Anguilliformes...
- Albuliformes
  - Albuloidei
- Anguilliformes
  - Anguilloidei
    Anguilloidei
    The Anguilloidei are a sub-order of the order Anguilliformes that contains 6 families:*Anguillidae *Chlopsidae *Heterenchelyidae*Moringuidae *Muraenidae *Myrocongridae...
  - Congroidei
  - Muraenoidei
  - Saccopharyngoidei
- Elopiformes
  Elopiformes
  Elopiformes is the order of ray-finned fish that includes the tarpons, tenpounders, and ladyfish, as well as a number of extinct types. They have a long fossil record, easily distinguished from other fishes by the presence of an additional set of bones in the throat.They are related to the order...
  - Elopoidei
- Notacanthiformes
  Notacanthiformes
  Notacanthiformes is an order of deep-sea ray-finned fishes, consisting of the families Halosauridae and Notacanthidae The order is of relatively recent vintage; Fishes of the World lists it as a suborder Notacanthoidei of Albuliformes...
  - Notacanthoidei

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