The youngest at any given time is probably a diatom, I’d think. They just exist in such great numbers, that’s all. They’re even harvested up and sold as diatomaceous earth.
Oldest bone is a 400 million year old fishbone, apparently. I had to google it.
The youngest at any given time is probably a diatom, I’d think. They just exist in such great numbers, that’s all. They’re even harvested up and sold as diatomaceous earth.
Oldest bone is a 400 million year old fishbone, apparently. I had to google it.
https://newatlas.com/oldest-bone-aspidin-fish-fossil/55710/
Edit: next time I’m gonna read the link I link before I link it instead of after. Gimme a minute, tacos just arrived
Edit again been reading a lot about diatoms and it looks like there’s an established fossil record as recent as 1.5 million years ago. Neat!