Mr Mera suggested it was very “coincidental” that statements from Peruvian scientists and the government saying it was a criminal hoax were made just before Mr Maussan and his team announced their preliminary findings at a press conference.
Mr Mera added: “They said it was all fake. How can they do that if they have not seen them?”
Mr Maussan said: “They did an event to declare our findings a hoax, a fraud.
“They don’t have the bodies, they don’t have the X-rays, they don’t have the CAT scans… they have not presented anything one shred of evidence that backs their word.”
After the interview, Mr Mera said he pondered on the claims.
He said: “They have discredited it, but are doing it without laying a single finger on any of the bodies.
“How can they do that if they have not seen them?”
The organisers of the ninth annual World Congress on Mummy Studies, which took place in Lima, Peru, last August, issued an angry call on Facebook for an official inquiry into whether archaeological crimes have been committed.
The congress brings together world experts in mummies and skeletons in a new location each year.
Under the heading ‘The Fraud of Extraterrestrial Mummies’, translated from Spanish, the congress said it believed real human mummified remains had been mutated and re-arranged to create bogus alien-looking creatures.
Other scientists looked at X-ray images of the three-fingered hands released by Gaia.com and said they had been created using identifiable human hand bones from a number of bodies.
Express.co.uk has contacted the Peruvian Ministry of Culture and awaits a response.