Stamp: Hammerhead Shark (Niuafo'ou 2019)
Hammerhead Shark (Niuafo'ou 2019)
21 June (Niuafo'ou ) within release Sharks (2019) goes into circulation Stamp Hammerhead Shark face value 2.80 Tongan pa'anga
| Stamp Hammerhead Shark in catalogues | |
|---|---|
| Colnect codes: | Col: TO-NI 2019-02MSe |
Stamp is square format.
stamp from mini-sheetAlso in the issue Sharks (2019):
- Stamp - Zebra Shark face value 2.80;
- Souvenir Sheet - Great White Shark face value 9.30;
- Stamp - Hammerhead Shark face value 2.80;
- Stamp - Great White Shark face value 9.30;
- Stamp - Thresher Shark face value 2.80;
- Stamp - Blacktip Reef Shark face value 2.80;
- Stamp - Mako Shark face value 2.80;
- Stamp - Whale Shark face value 2.80;
- Mini Sheet - Sharks face value 6*2.80;
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Data entry completed
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| Stamp Hammerhead Shark in digits | |
| Country: | Niuafo'ou |
| Date: | 2019-06-21 |
| Print: | Offset lithography |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 2.80 Tongan pa'anga |
Stamp Hammerhead Shark it reflects the thematic directions:
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the Batoidea (rays and kin). Some sources extend the term "shark" as an informal category including extinct members of Chondrichthyes (cartilaginous fish) with a shark-like morphology, such as hybodonts. Shark-like chondrichthyans such as Cladoselache and Doliodus first appeared in the Devonian Period (419–359 million years), though some fossilized chondrichthyan-like scales are as old as the Late Ordovician (458–444 million years ago). The earliest confirmed modern sharks (selachimorphs) are known from the Early Jurassic around 200 million years ago, with the oldest known member being Agaleus, though records of true sharks may extend back as far as the Permian.
