Read the paragraph again from the article.
The Trilobites that were not on the Ark were in the rolled-up position as they were inundated by the Flood and thus encapsulating them in mud.
The two the were on the Ark would not fit this model and thus could be identified.
Unless of course some huckster evolutionary geologist has already found them and hid or destroyed them as not to destroy that little theory of theirs.
So we can identify the trilobites on the Ark because they're not rolled up? Can you tell me which two on this page are the ones?
And then can you explain why the others aren't rolled up, if that was the characteristic trilobite response to being rapidly inundated?