| Citation | Ruppert, E.E. 2005 Key Characters uniting Hemichordates and Chordates: Homologies or Homoplasies?. Hemichordata; Chordata; Homologies; Homoplasies. Can. J. Zool. 83(1):8-23. |
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| Ref. No. | 1337 |
| Language | English |
| Usage | not used yet |
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