Re: Making Tracks

> As an aside, the dinosaur track picture is now even more complicated here
> in Denver. Overlying the Dakota Group sandstone that contains the
> previously described megatracksite layer are 8,000 feet of black marine
> shale (interpreted to be deposited by that Cretaceous mid-continent
> seaway). On top of that shale are more sandstones left behind as the sea
> slowly receded from the area. These sandstones (the Laramie Formation)
> also contain dinosaur tracks! Only this time the assemblage appears to be
> Hadrosaurian (duck-bills) and Ceratopsian dinosaurs. The vegetation
> included palm trees since we also have the imprint of palm fronds and
logs.
> One surface exposed in a clay mine (now part of a golf course) has a
> combination of hadrosaur prints, beetle tracks, and raindrop impressions.
> Lockley and company have also recently reported rat-sized mammal tracks
> from this same area.
> I'll leave it to your imagination to create the YEC picture of a
vegetation
> raft floating around with this assemblage of creatures! My incredulity
> overfloweth.

More dino humor:

Conductor: "All dinosaurs aboard the Cretaceous Express floating mat!"

(Later)

Conductor: "Hey, buddy, your ticket says Jurassic - what are you doing on
the Cretaceous mat?"

Dinosaur: "Oh, man, I must've gotten on the wrong mat!"

Conductor: "Well, I'm sorry, but you'll just have to go back to the
Jurassic."

Dinosaur: " I can't; it's covered by 500 meters of sediment!"

It doesn't take much examination of the "hopped off the floating mat"
dinosaur idea to realize that it doesn't explain the distribution of
different dinos in the fossil record.

See also my previous post on Canadian coal and dinosaurs at
http://www.calvin.edu/archive/asa/200403/0052.html

Kevin Sharman
Received on Tue Mar 30 23:59:46 2004