The news was reported by the British Broadcasting Corporation.
Pompeii's ancient residents were encased in ash when Mount Vesuvius erupted.
The city's flora and fauna included a pregnant tortoise with her eggs.
The reptile's remains were found under the ash and rock that it had left behind.
When the volcano hit, the tortoise was under the destroyed building.
After an earthquake devastated Pompeii in 62AD, the city's ancient inhabitants had to rebuild.
The shop that was destroyed in the earlier earthquake was home to a 14 cm (5in) tortoise.
It's thought that it was killed while trying to find a peaceful place to lay its eggs.
Mark Robinson, an Oxford University archaeologist who discovered the remains of a tortoise at a nearby Pompeii site in 2002, said there were two possible explanations for how the reptile got there.
He said that it was a pet tortoise that might have escaped and made its way to the ruins of the earthquake.
He said that it was possible that it was a tortoise from the nearby countryside.
Pompeii was completely destroyed by the earthquake. The flora and fauna from the countryside arrived in the town.
The discovery shows the richness of Pompeii's natural environment after the earthquake, according to experts.
Gabriel Zuchtriegel, Pompeii's director general, said that some spaces were so unused that wild animals could roam.
The discovery of Pompeii was described by a visitor to the site as "spectacular."
The skeleton and egg were visible after the shell was removed. It was a light brown colour.
If they hadn't told him, he wouldn't have known it was an egg.