If 1 meter 1 billion years is the scale for a geologic time line approximately how many meters would represent the Paleozoic era?

The Paleozoic Era spans from about 541 to 252 million years ago, roughly 290 million years in total. Using the scale of 1 meter for 1 billion years, the Paleozoic would be represented by approximately 0.29 meters, or 29 centimeters, on the geologic timeline.