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Archelon is an extinct marine turtle from the Late Cretaceous, and is the largest turtle ever to have been documented, with the biggest specimen measuring 4.6 m (15 ft) from head to tail and 2.2–3.2 t (2.4–3.5 short tons) in body mass.
Meaning: a prefix used to make words with a sense opposite to that of the root word; in this case, meaning "without" or "-less". This is usually used to describe organisms without a certain characteristic, as well as organisms in which that characteristic may not be immediately obvious.
Protostegidae is a family of extinct marine turtles that lived during the Cretaceous period. The family includes some of the largest sea turtles that ever existed. The largest, Archelon, had a head one metre (39 in) long.
Archelon received a peer review by Wikipedia editors, which is now archived. It may contain ideas you can use to improve this article. It may contain ideas you can use to improve this article. Archelon has been listed as one of the Natural sciences good articles under the good article criteria .
Archons (Greek: ἄρχων, romanized: árchōn, plural: ἄρχοντες, árchontes), in Gnosticism and religions closely related to it, are the builders of the physical universe.
ARCHELON, the Sea Turtle Protection Society of Greece was founded in 1983. It aims to protect sea turtles and their habitats in Greece through research , public awareness campaigns, restoring habitats, and through its rescue centre, built in 1994.
Each unit is stationed behind and to the right (a "right echelon"), or behind and to the left ("left echelon"), of the unit ahead. The name of the formation comes from the French word échelon, meaning a rung of a ladder, which describes the shape that this formation has when viewed from above or below.
In contrast to their earth-bound relatives, tortoises, sea turtles do not have the ability to retract their heads into their shells. Their plastron, which is the bony plate making up the underside of a turtle or tortoise's shell, is comparably more reduced from other turtle species and is connected to the top part of the shell by ligaments without a hinge separating the pectoral and abdominal ...