A taxonomic rank in biological classification, ranking below a phylum and above a class.

A group of organisms within the phylum Chordata that are characterized by a notochord.

नॉटोकॉर्ड द्वारा विशेषीकृत जीवों का एक समूह

English Usage: Organisms in the subphylum Urochorda lack a backbone in their adult form.

Hindi Usage: उपफाइलम उरोचोर्डा में वयस्क रूप में रीढ़ की हड्डी नहीं होती।