Stamp: Placodus (Guyana 1998)
Placodus (Guyana 1998)
23 February (Guyana ) within release Prehistoric Animals goes into circulation Stamp Placodus face value 55 Guyanese dollar
| Stamp Placodus in catalogues | |
|---|---|
| Stanley Gibbons: | Sg: GY 5184 |
Stamp is square format.
Also in the issue Prehistoric Animals:
- Mini Sheet - 9 Dinosaurs face value 9*55;
- Stamp - Ceresiosaurus face value 55;
- Stamp - Coelacanth face value 55;
- Stamp - Grendelius face value 55;
- Stamp - Herrerasaurus face value 100;
- Stamp - Iguanodon face value 200;
- Stamp - Kentrosaurus face value 25;
- Stamp - Lagosuchus face value 60;
- Stamp - Lesothosaurus face value 30;
- Stamp - Mesosaurus face value 55;
- Stamp - Mixosaurus face value 55;
- Stamp - Northosaurus face value 55;
- Stamp - Placodus face value 55;
- Stamp - Rhomaleosaurus face value 55;
- Stamp - Stegoceras face value 35;
- Stamp - Stethacanthus face value 55;
- Souvenir Sheet - Styracosaurus face value 300;
- Souvenir Sheet - Yangchuanosaurus face value 300;
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Data entry completed
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| Stamp Placodus in digits | |
| Country: | Guyana |
| Date: | 1998-02-23 |
| Print: | Offset lithography |
| Perforation: | 14 |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 55 Guyanese dollar |
Stamp Placodus it reflects the thematic directions:
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is a subject of active research. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201.3 mya and their dominance continued throughout the Jurassic and Cretaceous periods. The fossil record shows that birds are feathered dinosaurs, having evolved from earlier theropods during the Late Jurassic epoch, and are the only dinosaur lineage known to have survived the Cretaceous–Paleogene extinction event approximately 66 mya. Dinosaurs can therefore be divided into avian dinosaurs—birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds.
