Dinosaurs: The Final Day

[Infinity Blade]

David Attenborough has been involved in another dinosaur documentary, this time concerning the Tanis site in the Hell Creek Formation and its supposed link to the Chicxulub asteroid. It has some very interesting findings regardless. Here's the link if you're interested.


hdclump.com/dinosaurs-the-final-day/

[spartan]

Just saw it last night. The existence of the western interior seaway seems to play a vital role in the flood wave theory and the show depicts it looking that way:

while other sources depict it as looking that way 66 mio years ago:

Does anybody know which one is correct?

[Infinity Blade]

spartan

I recently got an answer. It appears neither is correct, and the Western Interior Seaway was likely more extensive at the end of the Maastrichtian than usually depicted.

And if you want an actual paper that supports this, see page 48 of this paper here. It's telling that if the seaway receded that much, there should have been a faunal exchange between the two sides of North America, which we have no evidence of.

www.researchgate.net/publication/280641436_EARLY_CRETACEOUS_TO_PALEOCENE_PALEOGEOGRAPHY_OF_THE_WESTERN_INTERIOR_SEAWAY_THE_INTERACTION_OF_EUSTASY_AND_TECTONISM

[spartan]

Awesome, thank you! That's quite the difference. I wonder how the other interpretations came to be. Shouldn't this be easily provable by the existence of fossils of fully marine animals from that time period in certain regions?