期刊
LETHAIA
卷 41, 期 3, 页码 257-261出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1502-3931.2007.00049.x
关键词
anatomy; Carboniferous; Czech Republic; microsaur
类别
Previously undescribed specimens of the aquatic microsaur Microbrachis pelikani Fritsch from the Upper Carboniferous of Nyrany, Czech Republic, demonstrate the presence of a deep-swimming-adapted tail supported by up to 46 postsacral vertebrae. The tail appears to have lengthened with ontogeny. Most microsaurs appear to have been terrestrial and because the group has been perceived to be related to the amniotes, all (including Microbrachis) had been reconstructed with slender tapering tails. Microbrachis appears to be an early offshoot of the microsaurs and it is unclear whether the deep tail is a primitive retention or an acquired characteristic of the genus.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据