any animal of the phylum Chordata having a notochord or spinal column.
具有脊索动物或脊椎的脊索动物门的动物。
any family in the phylum Chordata.
脊索动物门的任一科。
any genus in the phylum Chordata.
脊索动物门中的各种种类。
study laid lhe foundation for the founding of phylum chordata, and struck a powerful counterblow to crationism
柯瓦列夫斯基的研究奠定了脊索动物门成立的基础，也给神创论以有力回击.
A chordate marine animal of the subphylum Urochordata;a tunicate.
尾索动物尾索动物亚门的海生脊索动物；被囊动物
Any of various primitive chordate animals of the subphylum Cephalochordata, such as the lancet, that lack a true vertebral column.
头索动物头索动物亚门的一种原始脊索动物，如帆蜥鱼，无真正的脊柱
fishlike animals having a notochord rather than a true spinal column.
有脊索但无真正的脊柱鱼类动物。
A notochord limited to the caudal region, characteristic of the urochordates.
尾索限于尾部的脊索，有尾索动物的特征
any animal lacking a backbone or notochord; the term is not used as a scientific classification.
缺少脊椎或脊索的动物；该术语不用于科学分类。
A similar structure in embryos of higher vertebrates, from which the spinal column develops.
脊索更为高等的脊椎动物胚胎中的类似结构，脊椎骨由此发育
of or relating to or characteristic of the Chordata.
属于、关于或具有脊索类动物特征。
The Evolution of ABCA Subfamily in Chordates;
ABCA亚家族在脊索动物中的进化
The eolutionary precursor to the backbone, the notochord is a fine, flexible chord defining the body axis in the early embryos of all ertebrates.
脊索是脊椎进化的前体，脊索在所有的脊椎动物胚胎早期起到柔韧轴的作用。
The mollusc phylum includes all soft-bodied animals without backbones.
软体动物门包括所有无脊椎的软体动物.
(zoology) of or relating to invertebrates of the phylum Arthropoda.
（动物学）属于或与节肢动物动物门无脊椎动物相关。
The Exploration of the Momentum for the Evolvement of Vertebrate into Human Being
脊椎动物进化成人类“自然选择”动力的探索
The vertebrate spine or spinal column.
脊骨脊椎动物的脊椎或脊柱
The sea urchin represents the first sequenced genome from the echinoderms, which are the closest known relatives of the chordates, the group that includes vertebrates, animals with spinal columns.
海胆是首个被排序的棘皮动物，这是与离脊索动物（包括有脊椎动物）近的亲属。