Meaning of Uzma. African name. In African, the name Uzma means-greatest.The name Uzma originated as an African name. The name Uzma is most often used as a girl name or female name.
Compared to the oldest fossils ever found, though, Sue is the new kid on the block [source: Field Museum ]. Some of those ancient fossils, known as stromatolites, are more than 50 times older than Sue -- 3.45 billion years old, to be exact [source: University of Munster ].
Scientists can not find the exact age of fossils. They use radioactive measures estimates of sedimentation and index fossils to date other fossils. The closest scientists can come to an exact date for a fossil is Carbon 14 dating. However since Carbon 14 has a half life of about 5,600 years Carbon 14 dating can only be used to date very recent fossils.