[PAR35]

Sounds like they may be geographically challenged.

“sedimentary rock in Colorado”
“Alternating layers of shale and limestone near Big Bend, Texas, characteristic of the rock laid down at the bottom of a shallow ocean during the late Cretaceous period.”

Well, Colorado, Texas. What difference does it make. They are both just flyover country.

[JimSEA]

Though the article doesn’t make it clear, the rock formations would seem to be similar in age and stratification, both laid down beneath a shallow sea stretching through the middle of North America. If that was the case, you would expect both to show the same evidence changes in the earth’s orbit. One would also support the other.

[TXnMA]

"Well, Colorado, Texas. What difference does it make. They are both just flyover country."

That was one big oceanic segment. We routinely found fossilized shark's teeth 100 yards from our home in Sherman (north central) Texas. And, when you're at the parking lot at Carlsbad Caverns, New Mexico, you're standing on an ancient seashore-- looking out across that same ocean basin.

I haven't looked for specific evidence of it in Colorado, but, would not be surprised if others have found such evidence there.

FWIW, this:

San Jacinto Monument -- at the battleground where Texians kicked the Mexicans out of Texas -- and taller than the Washington Monument -- is built of this:

..."Texas Fossiliferous Limestone" from Central Texas. (Limestone from one of those "dry period" layers mentioned in the article...)

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[LOL! I Just inspired myself to revive an old tagline...] '-)