How long is long and how do you know that the earliest bird fossil has been found?
The oldest insect fossils we've found are about 400 million years ago. The oldest reptiles fossils, which birds come from, are about 320 million years ago. The oldest fossil for anything that even resembles a modern-day bird is about 80 millions years. So insects had been around, about, 320 million years before birds came onto the scene.
Is it possible that there's a bird fossil out there that dates back farther than insects? Sure, it's possible. I'm not claiming with absolute certainty that such a thing doesn't exist, but it's extremely unlikely. We've never found a single bird fossil that even comes close to predating insects. Not one. Ever. Not even a hint of a bird being around when insects showed up. Not an egg. Not a feather. Nothing.
The logical conclusion is that they first started appearing long after insects showed up. If there's some other explanation that works just as well, I'd love to hear it.
Upvote
0