沟犁贝属(学名:Aulacophoria)是裂线贝科下已灭绝的一个属,生活在早石炭纪海洋的泥质沉积中。[1]
特征
这类腕足动物的体型为中等大小,壳形从近乎圆形到接近正方形的都有。背壳凸起程大于腹壳,且有宽大的前部褶皱,而腹壳上则有一对应的凹陷。肉茎本身十分突出,铰合面相对窄小一些。两壳上均有纤细的肋纹。[1]
参考文献
外部链接
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