lordandgodoftheobvious:

Things that have been stated in Miraculous Ladybug:

• Andre Bourgeois has the funds, technology, and clearance to launch Paris’ trash into space, thought that was a good idea, and somehow hasn’t been assassinated by NASA, the ESA, and the ISRO for creating this Kessler-Syndrome-waiting-to-happen.
• Plagg is the reason dinosaurs went extinct, meaning not only are the Miraculous at least sixty-five million years old, not only is he personally at least sixty-five million years old, but someone was using Miraculouses during the time of the dinosaurs! (Does this show share a universe with Kyōryū Sentai Zyuranger?)

Things the show runners have said about Miraculous Ladybug:

• Ladybug and Chat Noir have patrols, in spite of the fact that all akumatized villains will find a way to make themselves known.
• There is no glamor protecting their identities, in spite of that being literally the only possible reason no one’s figured it out yet.

Conclusion:

• Thomas Astruc can’t tell me what is and isn’t canon.

Actually, the miraculous aren’t that old.

According to the history of Miraculous Ladybug, every time an abstract concept is born into the world, a kwami is born (which is why Tikki and Plagg are the strongest kwami; they are the oldest). The kwamis traversed the galaxy and eventually found earth, but they were invisible to all creatures there.

It wasn’t until the miraculous were made, and each one tied to a kwami, that they could be seen and touched.

So it is entirely possible for Plagg to have been on earth during the dinosaurs, probably freaked out at the sight, and made a cataclysm that destroyed them.