Answer :
This means the extinct dinosaur and modern bird share a common ancestor.
Any preserved remains, impression, or trace of a once-living thing from a previous geological age is referred to as a fossil. Bones, shells, exoskeletons, stone imprints of animals or microbes, amber objects, hair, petrified wood, and DNA remnants are some examples. The fossil record is the collection of all fossils.
Paleontology is the study of fossils, including their age, formation method, and evolutionary significance. If a specimen is over 10,000 years old, it is considered a fossil. The oldest fossils date back 3.48 billion to 4.1 billion years. The discovery in the nineteenth century that certain fossils were associated with specific rock strata led to the establishment of a geological timescale and the relative ages of various fossils.
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