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Luxembourg

thematic philately : Reptiles

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Reptiles, as most commonly defined, are the animals in the class Reptilia /rɛpˈtɪliə/, a paraphyletic grouping comprising all amniotes except synapsids (mammals and their extinct relatives) and Aves (birds). The class comprises turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all animals more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. (Domain: Eukaryota - Kingdom: Animalia - Phylum: Chordata - Clade: Sauropsida - Class: Reptilia)
1945002
have:
1945002: 1.20 F - Liberation - Homage to the Allied Nations - Russia - semi postal stamp
1965009
have:
1965009: 50c+10c - Caritas Fairy tales - The Roman Gentleman of Titelberg (Esch-sur-Alzette) - semi postal stamp




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