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amphioxus    
n. 文昌鱼

文昌鱼

amphioxus
n 1: small translucent lancet-shaped burrowing marine animal;
primitive forerunner of the vertebrates [synonym: {lancelet},
{amphioxus}]


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  • Lancelet - Wikipedia
    The lancelets ( ˈ l æ n s l ɪ t s, ˈ l ɑː n- LA(H)N-slits), also known as amphioxi (sg : amphioxus ˌ æ m f i ˈ ɒ k s ə s AM-fee-OK-səs), consist of 32 described species of somewhat fish-like benthic filter feeding chordates [9] in the subphylum Cephalochordata, class Leptocardii, and family Branchiostomatidae
  • Amphioxus | Anatomy, Habitat Reproduction | Britannica
    amphioxus, any of certain members of the invertebrate subphylum Cephalochordata of the phylum Chordata Amphioxi are small marine animals found widely in the coastal waters of the warmer parts of the world and less commonly in temperate waters
  • Amphioxus as a model to study the evolution of development in chordates
    Cephalochordates and tunicates represent the only two groups of invertebrate chordates, and extant cephalochordates – commonly known as amphioxus or lancelets – are considered the best proxy for the chordate ancestor, from which they split around 520 million years ago
  • The Natural History of Model Organisms: Amphioxus as a model to . . . - eLife
    Here we describe the life cycle of amphioxus, and discuss the natural histories and habitats of the different species of amphioxus We also describe their use as laboratory animal models, and discuss the techniques that have been developed to study different aspects of amphioxus
  • Amphioxus - Shape of Life
    Amphioxus, or the lancelet, is an animal that comes closer than any other to the transition group between invertebrates and vertebrates Because they are early chordates and have all the chordate characteristics, Amphioxus has been essential in understanding vertebrate evolution Our human evolution
  • Introduction to the Cephalochordata - University of California Museum . . .
    Known as lancelets or as amphioxus (from the Greek for "both [ends] pointed," in reference to their shape), cephalochordates are small, eel-like, unprepossessing animals that spend much of their time buried in sand
  • Amphioxus – Habitat, Habit and External Features
    Amphioxus are a group of 30 to 35 species of “fish-like” benthic filter feeding chordates in the subphylum Cephalochordata Also called lancelets, they are the modern representatives of a group of ancient, segmented coelomate deuterostomes
  • Amphioxus - sorbonne-universite. fr
    We cover Amphioxus’s scientific history, anatomy, life cycle, and phylogeny, and show how embryos of Branchiostoma lanceolatum can be obtained in the lab We also look at experimental techniques like immunodetection and fluorescent labeling that are used to study embryogenesis
  • Amphioxus as a Model for Understanding the Evolution of Vertebrates . . .
    Amphioxus was first discovered in Europe as a lancelet Taxonomically, it belongs to the subphylum Cephalochordata, which means “chordate in the head ” The fossil evidence, as well as the modern molecular phylogenetic tree, suggests amphioxus as the most basal chordate
  • Characteristics and behavior of amphioxus | Britannica
    amphioxus, or lancelet, Any of certain small marine chordates (invertebrate subphylum Cephalochordata) found widely on tropical and subtropical coasts and less commonly in temperate waters Seldom more than 3 in (8 cm) long, they resemble small, slender fishes without eyes or a definite head





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