phanerozoic |
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navigate by keyword : 1960s age all are arthur brachyura cambrian childrens china covered crab crabs crustaceans decapod edited encyclopedia entirely eon era exoskeleton first fresh generally geological have hidden historynvintage illustration infraorder king land live living mee nearest oceans originated pair paleozoic period phanerozoic pincers projecting relative short single social tail they thick thorax trilobite typically usually very was water which worlds |
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The Children`s Encyclopedia originated and edited by Arthur Mee 1960s - Social History.
Vintage illustration of The King of Crab of China, the nearest living relative of the Trilobite of the Cambrian Age. Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting `tail`, usually hidden entirely under the thorax. They live in all the world`s oceans, in fresh water, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers. The Cambrian Period was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. |
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