It was a cytobacteria, a microfossil that lived in the Paleoarchean Era.
During this time, the Earth's atmosphere had little or no oxygen.
In fact, there was no such thing as a "dinosaur" until 1676, as far as people knew, and even then, the discovery of a gigantic leg bone didn't enter scientific literature until 1763.
However, even he couldn't have imagined he would find such a magnificent animal!
time as thought of as the lifespan of the Earth or even of the entire universe, is measured in millions or even billions of years.
The oldest fossil ever recorded was more than 3.4 billion years old!
Dinosaur fossils have been known to mankind since at least the Middle Ages, when Europeans and Asians alike believed they were the bones of dragons.
However, no one realized these creatures actually lived millions of years ago until the very recent past.
By measuring the diminishing presence of carbon-14 within a dead plant, he showed it was possible to determine its approximate date of death.