|
Results 1 - 10 from 16 for cretaceous tertiary in 0.641 sec.
Richard F. Yuretich
Cretaceous Western Interior Seaway of the Rocky Mountain region (in collaboration with Mark Leckie) and examination of Tertiary non-marine environments in the Bighorn ... the Southwestern Greenhorn Sea during the time of the Late Cenomanian/Turonian boundary (late Cretaceous) in Dean W.E. and Arthur, M.A. (eds.), Stratigraphy and Paleoenvironments of the ...
www.geo.umass.edu
Planetary Ejections and Cratering
The worldwide distribution of iridium at the end of the Cretaceous can only be produced by explosive, hot gases. Tektites are dispersed in what are called ... from the Japanese, and East and West Australian Fields. Even the iridium layer of the Cretaceous-Tertiary Boundary, the time of the dinosaurs extinction, spreads around the world along mid-latitudes (the ...
livingcosmos.com
Evolution, Mass Extinctions, and Mass Speciations
This event is marked by what is referred to as the Cretaceous-Tertiary Boundary. To see a partial discussion and excerpts on this event see the web page ... those times when great mass extinctions occur in animals (Late Devonian, Permo-Triassic and Late Cretaceous). Dry spores under oxygen-deficient (anoxic) conditions are very resistant to radiation. Typically such ...
livingcosmos.com
More from this site
Earth Sciences Collection of the Canadian Museum of Nature
Cretaceous reptiles, including an impressive dinosaur collection; Tertiary and Quaternary mammals; Cretaceous and Devonian fishes. Of particular note are our dinosaurs from the late Cretaceous, especially ... is a small but important representation of Canadian flora, particularly from the Cretaceous and Tertiary. The Fossil Fungi Collection of 1200 specimens is primarily a reference ...
nature.ca
Natureandco.com - National Parks of New Zealand - Te Urewera National Park
Cretaceous ages generically referred to as greywacke, which form the north and western parts of the park. The southern and eastern parts, by contrast, are made of the younger (Tertiary) sandstones ...
natureandco.co.nz
Paleoclimate and Climate Change Research Group
Explore the climatic consequences of the Cretaceous-Tertiary bolide impact, (5) Investigate the recent climatic and environmental changes that have taken place in ...
www.es.ucsc.edu
FLMNH Natural History Department
Its greatest strength is in Cretaceous-Tertiary angiosperms, the world's oldest flowering plants. The Invertebrate Paleontology collection includes material collected within ...
www.flmnh.ufl.edu
Marine Ecology - MarineBio.org
Other examples of well-known ecological crises are the Permian-Triassic extinction event, the Cretaceous-Tertiary Event, Global Warming from the Greenhouse effect, the hole in the ozone layer, desertification and ...
marinebio.org
In the Field: Jaelyn Eberle investigates fossil mammals in the Denver Basin.
"Why study dinosaurs, who, like so many other organisms, met their demise at the Cretaceous-Tertiary (K-T) boundary? Why not study the tiny mammals that kept right on going, across ... Earth, the Cretaceous-Tertiary boundary is but a geologic "millisecond". It is defined primarily by the extinction of one great group of organisms -- the dinosaurs -- at the end of the Cretaceous Period, and ...
nature.ca
Catastrophism
Cretaceous-Tertiary boundary about sixty-five million years ago. While the idea that a large impact might ...
pibburns.com
The results are filtered
View all results for cretaceous tertiary
|
