Stamp: Blacktip Reefshark (Carcharhinus melanopterus) (Uganda 1999)
Blacktip Reefshark (Carcharhinus melanopterus) (Uganda 1999)
15 March (Uganda ) within release International Year of the Ocean. sea animals goes into circulation Stamp Blacktip Reefshark (Carcharhinus melanopterus) face value 500 Ugandan shilling
| Stamp Blacktip Reefshark (Carcharhinus melanopterus) in catalogues | |
|---|---|
| Michel: | Mi: UG 2090 |
| Stamp Number: | Sn: UG 1596d |
Stamp is square format.
Also in the issue International Year of the Ocean. sea animals:
- Se-tenant - Blue Marin & Artic Tern face value 1,000;
- Stamp - Sea Nettle (Chrysaora quinquecirrha) face value 2,500;
- Souvenir Sheet - Clam (Decatopecten striatus) face value 2,500;
- Stamp - Atlantic Wolffish (Anarhichas lupus) face value 500;
- Stamp - Mountain Crab (Gecarcinus ruricola) face value 500;
- Stamp - Short-beaked Common Dolphin (Delphinus delphis) face value 500;
- Stamp - Clam (Decatopecten striatus) face value 2,500;
- Stamp - Loggerhead Turtle (Caretta caretta) face value 500;
- Stamp - Sailfin Tang (Zebrasoma veliferum) face value 500;
- Stamp - Vermillion Sea Star (Mediaster aequalis) face value 500;
- Stamp - Arctic Tern (Sterna paradisaea) face value 500;
- Stamp - Verill's Two-spot Octopus (Octopus bimaculatus) face value 500;
- Stamp - Purple Sea Urchin (Arbacia punctuata) face value 500;
- Mini Sheet - International Year of the Ocean face value 500;
- Stamp - Blacktip Reefshark (Carcharhinus melanopterus) face value 500;
- Stamp - Blue Marlin (Macaira nigricans) face value 500;
- Stamp - Blackedge Moray (Gymnothorax nigromarginatus) face value 500;
- Souvenir Sheet - Sea Nettle (Chrysaora quinquecirrha) face value 2,500;
- Stamp - Manta Ray (Manta birostris) face value 500;
- Mini Sheet - International Year of the Ocean face value 4*500;
Stamp Blacktip Reefshark (Carcharhinus melanopterus) 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.
