Units of Measurement Conversion between metric and English units. 1 meter (m) = 39.4 inches = 1.09 yards; 1 yard = 0.92 m 1 centimeter (cm) = 0.39 inches; 1 inch = 2.54 cm 1 millimeter (mm) = 0.039 inch = 39/1,000 inch; 1 inch = 25.4 mm 1 micrometer or micron (um) = 0.000039 inch = 39/1,000,000 inch; 1/1000 inch = 25.4 um
The most important characteristics to consider when identifying Index Fossils: ABUNDANCE: To best allow paleontologists to correlate rocks with other rocks found at locations far apart, it's important that the index fossil be very widely distributed across a vast geographical region.
  A Fossil is the remains (or an impression) of a plant or animal that existed in a past geological age A trace fossil is the burrows, trails, etc, of an animal.   A â¦ trace fossil is where something left a mark on something else, and then became fossilized.A body fossil is a fossil of a once living thing.race fossils are any fossil connected to ancient life but not the animal itself. Examples include footprints, teethmarks, nests, gizzard stones, coprolites, burrows etc. In a lot of ways trace fossils are as important as body fossils. The give us insight into how the animal lived, how fast it walked, what ate what etc.