Crossword clue: having a list of ancestors as proof of being a purebred animal
3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
having a list of ancestors as proof of being a purebred animal
a pedigreed animal of unmixed lineage; used especially of horses
a pedigreed animal of unmixed lineage; used especially of horses