polygnathus

常见例句

• The Devonian Famennian Condonont fossils which include Palmatlepis gracilis gracilis, P. gracilis sigmoidalis, and Polygnathus germanus are discovered for the first time in the Changjiang area of Hainan Island.
  在海南島昌江地區首次發現泥盆紀法門期牙形刺 Palmatolepis gracilis gracilis;P.
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