pteranodon (n.)

始于白垩纪的已灭绝的飞行爬行动物, 1876年（马什），其名为 pterodactyl，源自希腊语词根 anodous "无牙齿的"，由 an- "没有，没有"（见 an-（1））加上「牙齿」的分词 odon（属格词形式为 odontos ），来自 PIE 词根 *dent- "牙齿"。

They are remarkable for their large size, some having a spread of wings not less than twenty-five feet. They differ widely from the Pterodactyls of the old world, especially in the absence of teeth, and hence have been placed by the writer in a new order, Pteranodontia, from the typical genus Pteranodon. [O.C. Marsh, "Principal Characters of American Pterodactyls," 1876]

它们的巨大身躯和不亚于25英尺的翅膀展开大小让人惊异。它们在很多方面与旧世界的翼龙截然不同，特别是 absence of teeth，因此，作者将它们归为新的目 Pteranodontia，以典型的类 Pteranodon 来区别。