西蒙螈
西蒙螈（学名Seymouria），又名蜥螈或西蒙龙，是一类生存于二叠纪早期北美洲及欧洲的拟爬行动物。牠们细小，只有60厘米长。牠们适合在陆地生活，且拥有很多爬行类的特征，事实上牠们也被认为是原始爬行类。
Seymouria
中文百科
英语百科
Seymouria 西蒙螈
Seymouria was a reptile-like tetrapod from the early Permian of North America and Europe (approximately 280 to 270 million years ago). It was small, only 2 ft (60 cm) long. Seymouria was well adapted to life on land, with many reptilian features—so many, in fact, that it was first thought to be a primitive reptile.
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