Thailand 1997 "Dinosaurs"

Issue Date	28.08.1997
ID	Michel: 1804-1807, 103 Scott: 1762-1765, 1765a Stanley Gibbons: 1968-1971, 1972 Yvert: 1756-1759, 101 UPU: Category: pR
Author	Mr. Thaneth Penchaiwong
Stamps in set	4
Value	2,00 - Phuwiangosaurus sirindhornae 3,00 - Siamotyrannus isanensis 6,00 - Siamosaurus suteethorni 9,00 - Psittacosaurus sattayaraki
Size (width x height)
Layout
Products	FDC x1 MS x1 PP x1
Paper
Perforation	13.5
Print Technique	Photogravure
Printed by	Joh. Enschede Stamps
Quantity
Issuing Authority	The Communications Authority of Thailand

On 28 of August 1997, Post Authority of Thailand issued a set of four stamps shows reconstructions of dinosaurs fossils of which found in Northeastern part of the country. All these animals were alive in the early Cretaceous period, about 100-130 millions years ago.
Note: one stamp of the set, with face value of Baht 6.0, reprinted in 2008, with overprinted value of Baht 15

Siamosaurus suteethorni dinosaur on stamp of Thailand 1997 and 2008

Phuwiangosaurus sirindhornae. The first Sauropods dinosaur fossil-found in the Northeastern part of Thailand. Having both a long neck and tail, it measured about 15-20 meters in length. The medium sized Sauropods had 4 legs and were vegetarians.	Siamotyrannus isanensis. It was the newly discovered Therapods Carnosaur species, of the Tyrannosaurus family. Living on meat the dinosaur, which had rather short front legs, walked and ran on their two big, strong back legs. They were only about 6.5 meters in length.
Siamosaurus suteethorni. It was in the Therapods Carnosaur species of the Spinosarus family. They measure about 7 meters in length and alked on two legs. Living on fish.	Psittacosaurus sattayaraki. The small sized pincherbacked dinosaur measured only 1-1.4 meters in length. Different from the fossils of other dinosaurs found in Thailand. The dinosaur had a birdtype hip bone. A vegetarian, it lived about 100 million years ago, also in the early Cretaceous ages.