cephalochordata meaning in Hindi

Examples

1. Taxonomically, the phylum includes the subphyla Tunicata, which includes salps and sea squirts; and Cephalochordata, comprising the lancelets.
2. More recently, Cephalochordata has been thought of as a sister group to the " Olfactores ", which includes the craniates and tunicates.
3. Traditionally, Cephalochordata and Craniata were grouped into the proposed clade " Euchordata ", which would have been the sister group to Tunicata / Urochordata.
4. Taxonomists place lampreys and hagfish in the subphylum Vertebrata of the phylum Chordata, which also includes the invertebrate subphyla Tunicata ( sea-squirts ) and the fish-like Cephalochordata ( lancelets or Amphioxus ).
5. The characteristics of Cephalochordata are that they are segmented marine animals that possess elongated bodies with a notochord that extends the length of the body, extending from head to tail, persisting throughout the animal's life.
6. The Cephalochordata is traditionally seen as a sister subphylum to the vertebrates, with which it is grouped together into a clade ( sometimes called Notochordata ) which in turn is the sister group to the simpler still basal subphylum of the chordates, while the sister group of the vertebrates are the tunicates, previously known as the urochordates.