Multiple choice general knowledge foreign languages Guess the maximum weight of a prehistoric turtle : 300 kg 5,000 kg 5,000 pounds 5,000 ounce Reveal answer Fill a bubble to check yourself C Correct answer Explanation Prehistoric sea turtles like Archelon ischyros reached enormous sizes - up to 4.8 meters long and weighing approximately 2,200-2,500 kg (about 5,000 pounds), far larger than modern leatherback turtles.