Images Dated 25th April 2008
Available as Framed Prints, Photos, Wall Art and Gift Items
Choose from 72 pictures in our Images Dated 25th April 2008 collection for your Wall Art or Photo Gift. Popular choices include Framed Prints, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.
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Featured 25 Apr 2008 Print
FG-CC-144
FG-CC-144
Dinosaurs - Geology: the Cretaceous-Tertiary boundary (KT boundary)
The site is in the Red Deer River Valley, Alberta, Canada.
Sixty five million years ago an asteroid or comet collided with Earth at the tip of the Yucatan Peninsula. The material ejected from Earth as a result of the impact (pulverised terrestrial rocks and pulverised fragments of the bolide) fell back to earth, forming a thin layer that has been found at many sites around the world. It is usually a one to two-centimeter thick layer of clay, rich in the element iridium.
Many paleontologists think the global catastrophy triggered by the impact caused the extinction of the dinosaurs as well as of many marine reptiles and invertebrates.
On this photograph the tip of the hammer rests on the boundary clay layer.
Francois Gohier
© François Gohier / ardea.com
Featured 25 Apr 2008 Print
FG-CB-799
FG-CB-799
Dinosaur museum: overview of the Royal Tyrrell Museum of Paleontology, near Drumheller, Alberta, Canada.
Alberta, Canada
This museum is located in the Red Deer River Valley, among outcrops of the Late Cretaceous Horseshoe Canyon Formation, and north of Dinosaur Provincial Park in Alberta, Canada. It was built to showcase some of the remarkable dinosaur finds of this region (the carnivorous dinosaur Albertosaurus, as well as a variety of herbivorous Ankylosaurs, Ceratopsians, and Ceratopsians, among others).
Francois Gohier
© François Gohier / ardea.com
Featured 25 Apr 2008 Print
FG-CB-432
FG-CB-432
Dinosaurs - Geology: the Cretaceous - Tertiary boundary (KT boundary)
Location: Red Deer River Valley, north of Drumheller, Alberta, Canada.
Sixty five million years ago an asteroid or comet collided with Earth at the tip of the Yucatan Peninsula. The material ejected from Earth as a result of the impact (pulverised terrestrial rocks and pulverised fragments of the bolide) fell back to earth, forming a thin layer that has been found at many sites around the world. It is usually a one to two-centimeter thick layer of clay, rich in the element iridium. Many paleontologists think the global catastrophy triggered by the impact caused the extinction of the dinosaurs as well as of many marine reptiles and invertebrates. On this photograph the boundary clay layer is indicated by the bottom tip of the pen.
Francois Gohier
© François Gohier / ardea.com
