That would be a fossil.
The treasure was excavated from the cave. Coal is excavated from the mines. The archaiologist excavated the skeletal remains of the dinosaur.
The answer is fossil. Fossils are the preserved remains or traces of animals, plants, and other organisms from past geological ages, which are found in rocks and sediment. Fossils provide valuable information about the history of life on Earth and how organisms have evolved over time.
Trilobites are animals that existed millions of years ago. Geologists, anthropologists, and paleontologists study the fossilized remains of this animal.
The excavation of the fossil was hard for the paleontologist.
The ziggurat at Ur was excavated by Sir Leonard Woolley in the 1920s. Woolley's excavation revealed the remains of the ancient Sumerian city of Ur, including the ziggurat dedicated to the moon god Nanna.
the skeletons/remains
The remains of species that existed for relatively short periods of time, were abundant, and widely distributed geographically are referred to as "index fossils." These fossils are valuable for dating and correlating the age of rock layers, as their presence indicates specific geological time frames. Common examples include trilobites and ammonites, which help geologists and paleontologists understand the chronological sequence of Earth's history.
afterimage
A person who studies historic or prehistoric peoples and their cultures by analysis of their artifacts, inscriptions, monuments, and other such remains, especially those that have been excavated.
index fossils
Geologists measure the amount of carbon-14 present, the ratio of parent isotopes to daughter isotopes in radioactive decay, and the layers of rock surrounding the fossil to determine the age of an organism's remains.
its nonliving because fossils are like bones and things from the past