The gens Seria was a minor plebeian family at ancient Rome.
Members of this gens rose to prominence during the second century, attaining the consulship twice, and holding various other offices under the Nerva-Antonine dynasty.
The only distinct family of the Serii bore the cognomen Augurinus, borne by the consular family of the second century.
This was one of a large class of surnames derived from occupations, and probably indicating that the first member of the family to acquire the name was an augur.
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