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Issue Date 19.01.2009 ID Michel: 529-531 Scott: Stanley Gibbons: Yvert: UPU: GL005.09 Category: pF Author Artist and engraver: Martin Mrck Stamps in set 3 Value DKK 2.00 Schizoneura carcinoides
DKK 11.50 - Scaphites rosenkrantzi
DKK 22.00 Mallotus villosus
Size (width x height) 39.52 x 28.84 mm Layout 40 stamps in sheet Products FDC x3 Paper TR4 Perforation 13.25 Print Technique Combination Printed by POST Danmark Quantity Issuing Authority POST Greenland
"This is the second and fnal part of Post Green-lands series about fossils in Greenland and consists of three stamps demonstrating aspects of the extensive and exciting fossil record of Greenland. The second group of images continues our journey through some of the key events in the history of life on our planet, beautifully illustrated by yet more unique fossils. These three fossils, a plant, an invertebrate and a vertebrate, are from the younger part of the fossil record, ranging from about 200 million to just some 8,000 years ago.
Schizoneura carcinoides One of the fve big mass extinction events occur-red some 200 million years ago at the boundary between the Triassic and Jurassic geological systems. Beautifully-preserved plant fossils have been known for many years from Jameson Land in East Greenland derived from ancient forests that survived this extinction event. The horsetail Schizoneura carcinoides, with its distinctive spiky leaves, grew in marshes and if present in suffcient numbers could generate coal. In East Greenland these plants were common near Scoresby Sound and were frst described over 70 years ago. Now they are helping scientists assess climate change during the mass extinction event.
Another fossil group, the ammonites, similar to modern nautilus, became almost extinct with possibly only a couple of stragglers surviving into the Tertiary. During the later Cretaceous, however, the ammonites began to develop some fascinating and unusual shell shapes. Scaphites rosenkrantzi from the Cretaceous rocks of Nussuaq, West Greenland is a spectacular example, where the coiled shell of the animal has started to unravel. Despite its strange shape it could undoubtedly maintain its buoyancy in the water and probably swam quite fast." David Harper and Bent Lindow
About the authors
David Harper is Professor of Palaeontology, University of Copenhagen and is in charge of the palaeontological collections in the Geology Department, Natural History Museum of Denmark, University of Copenhagen. He is also head of the Geology Research Group at the museum. His research is feld and specimen-based, focused on the Lower Paleozoic rocks and fossils of Greenland, Scandinavia, the British Isles and China. He is currently Chair of the Publications Board (Palaeontological Association), President of the International Palaeontological Association and Chairman of the International Sub commission on the Ordovician System.
Bent Lindow is a palaeontologist at the Natural History Museum of Denmark (University of Copenhagen). He studies the evolution of birds and how it was infuenced by prehistoric climate change. Bent has given numerous lectures and participated in radio- and TV-interviews on palaeontology and the evolution of life in Denmark and abroad.
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Latest update 02.06.2013