Western Interior Seaway Depth

The western interior seaway was also home to xiphactinus another fish i worked on the genus larger at 18 feet long than any known bony fish.

Western interior seaway depth. At its largest the western interior seaway stretched from the rockies east to the appalachians some 1 000 km 620 mi wide. Western interior region subsidence was greatest near the western edge of this structural depression. At its deepest it may have been only 800 or 900 metres 2 600 or 3 000 ft deep shallow in terms of seas.

Locally as in southwestern wyoming and central utah upper cretaceous deposits alone reach thicknesses between 5490 and 6100 m 18 000 20 000 ft reeside 1944. Atlas all species geology geology of the western interior seaway. This however meant that the sun s life giving rays touched a significant portion of the water column and so the ocean teemed with all sorts of marine creatures.

The western interior seaway was a shallow inland sea that stretched from the gulf of mexico all the way to the arctic ocean cutting the north american continent in two. The deepest point of the western interior seaway ranged between 2 600 feet and 3 000 feet making the inland sea quite shallow in sea standards. Schaller that s about as deep as the western interior seaway got which is positively shallow compared to the average depth of oceans today roughly 12 100 feet.

Seven key time slice maps 130 115 105 92 85 77 and 72 ma overlap with the wis maps. Model is a bit less complicated and less distracting as far as the western interior seaway is concerned this allows attention to be focused easier on the western interior seaway. The ocean would have reached a depth of roughly 400 meters where the badlands lie today and the ocean temperatures of the western interior seaway would have been similar to those in the modern gulf of mexico.

Western interior seaway 89 8 ma turonian late western interior seaway 92 1 ma turonian middle western interior seaway 94 9 ma cenomanian late. Western interior seaway during the mid cretaceous some 100 million years ago the western interior seaway also called the cretaceous seaway the niobraran sea and the north american inland sea was a huge inland sea that split the continent of north america into two halves during most of the early and mid cretaceous period.