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The map of North America with the Western Interior Seaway during the Campanian. The Western Interior Seaway (also called the Cretaceous Seaway, the Niobraran Sea, the North American Inland Sea, or the Western Interior Sea) was a large inland sea that split the continent of North America into two landmasses for 34 million years.
Originally, the Portsmouth Earthworks consisted of three sections extending over twenty miles of the Ohio River valley, crossing from Ohio to Kentucky in several places. It was surveyed and mapped by E. G. Squier in 1847 for inclusion in the seminal archaeological and anthrolopological work Ancient Monuments of the Mississippi Valley.
In 1995, a single five foot long embolomere amphibian fossil was found in sandstone, near the margin of the Western Kentucky Coal Field. In the Pennsylvanian, shallow seas existed periodically, but the landscape was mostly swampy land. As the supercontinent Pangaea took shape, Kentucky was situated on the equator. Grasses and cordaite trees ...
A classic circular form spider's web Infographic illustrating the process of constructing an orb web. A spider web, spiderweb, spider's web, or cobweb (from the archaic word coppe, meaning 'spider') [1] is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.
Ocean secrets. The newly discovered seamount off the coast of Chile is 3,109 meters or 1.9 miles tall. ... Paleontologists have found matching dinosaur footprints on different continents 3,700 ...
Maury Monument at 3100 block of Monument Ave. in Richmond Virginia Maury Memorial showing primary and sub-pedestals with globe and seated Maury. The sculpture was designed by Frederick William Sievers and unveiled on November 11, 1929. The "Pathfinder of the Seas" monument of Matthew Fontaine Maury is located on Monument Avenue at Belmont ...
The archaeologists found heaps of stone blocks resting on the sandy bottom at least 14 feet below the water’s surface. Near there, experts also located what is likely a funerary monument dating ...
In the early 1970s, more than 2,000,000 used vehicle tires were dumped off the coast of Fort Lauderdale, Florida to form an artificial reef. However, the tires were not properly secured to the reef structures, and ocean currents broke them loose, sending them crashing into the developing reef and its natural neighbors.