优原穴鲎(学名:Euproops)是一属已灭绝的鲎,生存于古生代石炭纪,一般认为不是海生属。[2]
特征
优原穴鲎的身体前部覆盖着盾型背甲,上部表面则被靠近简单眼睛的明显脊突分成一个中间部和两个侧面。腹部由七节融合在一起的体节组成,体节边缘有棘刺。最后一个体节则为很长的尾刺。[2]
古无脊椎动物论文(Treatise on Invertebrate Paleontology)描述优原穴鲎有“小型楔形心脏裂片,借由不同的轴相接,环纹腹盾与突起的尾端。”[3]
1 sources
物种[4]
- Euproops amia Woodward, 1918
- Euproops danae Meek & Worthen, 1865
- Euproops longispina Packard, 1885
1 sources
参考文献
外部链接
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.