entity_id,period_id,confidence,rationale,source_id,review_status ENT_MON_ECHIDNA,PER_GRK_ARCHAIC,high,"The half-woman, half-serpent 'mother of monsters'; mate of Typhon and dam of the Greek monster brood. Attested Hesiod, Theogony 295-332 (esp. 304-305 description); Apollodorus 2.1.2. Genealogical hub previously missing from the DB.",SRC_HESIOD_THEOGONY,reviewed