…The teeth are single-pointed, homomorphic, and the surface of the tooth crown has characteristic linear sculptures. They are divided into two types: the pliosaurus type, which has a large head and a short neck, and the plesiosaurus type, which has a small head and a long neck (illustration). They were fish-eating. *Some of the terminology that mentions "pliosaurus" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…歯は単尖の同形歯で,歯冠の表面には特徴的な線状彫刻がみられる。頭が大きくて首の短いプリオサウルスpliosaurus型と頭が小さくて首の長いプレシオサウルスplesiosaurus型(イラスト)とに二大別される。魚食性である。… ※「pliosaurus」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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