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1. 我的作品主要是实物一如贝壳、空棘鱼化石和类似活化石的东西。
My work is mainly objects - shell, coelacanth and something like a living fossil.
2. 空棘的意思
2. 由于斑鳞鱼仅有一些零散的材料，研究者对这种奇异的特征组合心存疑虑，但是鬼鱼的出现证实这些特征组合是完全可信的。和斑鳞鱼及许多其它的肉鳍鱼类（包括拉蒂迈鱼，现生空棘鱼）一样，鬼鱼的脑颅也分为前后两个部分。
On the whole, early fossils are thought to be unreliable as minimum-date markers of evolutionary branching events11, because they are less complete and/or lack the full anatomical signature of the group to which they are assigned.