Amphioxiformes
Sign in to saveAlso known as lancelet
The lancelets ( ), also known as amphioxi (: amphioxus ), consist of 32 described species of somewhat fish-like benthic filter-feeding chordates in the subphylum Cephalochordata, class Leptocardii, and family Branchiostomatidae.
Research
1 papers- The genome sequence of the amphioxus, Branchiostoma lanceolatum (Pallas, 1774).Wellcome open research · 2025
via PubMed
Wikidata facts
- Image
- Branchiostoma lanceolatum.jpg
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- Commons category
- Cephalochordata
- taxon name
- Amphioxiformes
Sources (1)
via Wikidata · CC0
~22 min read
Article
20 sectionsContents
- Ecology
- Habitat
- Feeding
- Reproduction and spawning
- History
- Anatomy
- Nervous system and notochord
- Visual system
- ''Joseph cells'' and ''Hesse organs''
- Frontal eye
- Fluorescent proteins
- Feeding and digestive system
- Other systems
- Model organism
- As human food
- Phylogeny and taxonomy
- See also
- References
- Further reading
- External links
The lancelets ( ), also known as amphioxi (: amphioxus ), consist of 32 described species of somewhat fish-like benthic filter-feeding chordates in the subphylum Cephalochordata, class Leptocardii, and family Branchiostomatidae.
Lancelets diverged from other chordates during or prior to the Cambrian period. A number of fossil chordates have been suggested to be closely related to lancelets, including Pikaia and Cathaymyrus from the Cambrian and Palaeobranchiostoma from the Permian, but their close relationship to lancelets has been doubted by other authors. Molecular clock analysis suggests that modern lancelets probably diversified much more recently, during the Cretaceous or Cenozoic.