Narrator: THE COSO ARTIFACT
T-Rex: ...is totally amazing, you guys! Totally amazing.

T-Rex: It's a SPARK PLUG that was discovered encased in solid rock!

T-Rex: So awesome. A spark plug found inside a geode, surrounded by material that would have taken 500,000 years to collect! Is this truly CONCLUSIVE EVIDENCE that we will one day visit the distant past, and drop spark plugs in sediment while we're at it? I would argue "Definitely, dudes!" I would argue that there can be no other explanation and I would argue that it's gonna be great.

Utahraptor: The "Coso Artifact" wasn't found in a geode, T-Rex!
T-Rex: It wasn't?

Utahraptor: It was found in a concretion, and I'm sorry to tell you that those can develop in only a few years! There are marshes in England with WWII-era bombs encased in concretions as well. It's cool, but it's not proof of time travellers!
T-Rex: Man. Logical explanations keep letting me down!!

God: T-REX HOW DO YOU KNOW THAT UTAHRAPTOR ISN'T THE TIME TRAVELLER WHO LOST THE SPARK PLUG IN THE DISTANT PAST IN THE FIRST PLACE
God: MAYBE HE'LL SAY ANYTHING TO COVER IT UP
T-Rex: *gasp*
T-Rex: Conspiracies!!