And, as if to make the case as striking as possible, this cirripede was a Chthamalus, a very common, large, and ubiquitous genus, of which not one species has as yet been found even in any tertiary stratum.

而且，好像为了使这个案例尽可能引人注目，这种花螈是 Chthamalus，一种非常常见的、大且普遍存在的属，即使在任何第三层中也没有一个物种被发现.