The chordates.

Eitemau Tebyg

• The origin of chordates /
  gan: Bone, Q.
  Cyhoeddwyd: (1979)
• Vertebrate zoology : an introduction to the comparative anatomy, embryology, and evolution of chordate animals /
  gan: De Beer, Gavin, Sir, 1899-1972
  Cyhoeddwyd: (1928)
• The origin of chordates /
  gan: Bone, Q.
  Cyhoeddwyd: (1972)
• Chordate morphology.
  gan: Jollie, Malcolm
  Cyhoeddwyd: (1962)
• Evolution of chordate structure : an introduction to comparative anatomy.
  gan: Smith, Hobart Muir, 1912-
  Cyhoeddwyd: (1960)