Fossil Friday

Huh?

What is that I can’t even but just huh?

If you would be so kind as to leave your most eloquently expressed attempt to identify the fossil in question in the comments section below, then I shall exclaim, “What care for style! What patience of execution! What research for the significant tones of ancient idiom—sonantia verba et antiqua! What stately and regular word-building—gravis et decora constructio!”—but only if your identification is both first in time and most true in content. Make it, as is appropriate, one to remember.