|Souvenir Sheet Cerberus rynchops in catalogues|
|Michel:||Mi: SL BL943|
Souvenir Sheet is square format.Although this issue was authorized by the postal administration of Sierra Leone, the issue was not placed on sale in Sierra Leone, and was only distributed to the new issue trade by Sierra Leone's philatelic agent.
Also in the issue Marine Life:
Data entry completed
|Souvenir Sheet Cerberus rynchops in digits|
|Face Value:||24,000 Sierra Leonean leone|
Souvenir Sheet Cerberus rynchops it reflects the thematic directions:
Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). All animals are motile, meaning they can move spontaneously and independently, at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance.
Reptiles are tetrapod (four-limbed vertebrate) animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives. The study of these traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. Because some reptiles are more closely related to birds than they are to other reptiles (e.g., crocodiles are more closely related to birds than they are to lizards), the traditional groups of "reptiles" listed above do not together constitute a monophyletic grouping (or clade). For this reason, many modern scientists prefer to consider the birds part of Reptilia as well, thereby making Reptilia a monophyletic class.
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