throwback
//ˈθroʊˌbæk//
Noun
throwbackSingular
throwbacksPlural
1
A person or thing that is similar to or reminiscent of something from the past.
This café is a throwback to the 1950s.
2
A reversion to an earlier ancestral type or characteristic.
The scientist explained that the unusual trait was a throwback to an ancient ancestor.