MEXICO CITY — The editor of a publishing house in Cuba who wrote a critical article in The New York Times opinion section about persistent racial inequality on the island, something revolutionaries proudly say has lessened, has been removed from his post, associates said on Friday.

The author, Roberto Zurbano, in an article published March 23, described a long history of racial discrimination against blacks on the island and said “racial exclusion continued after Cuba became independent in 1902, and a half century of revolution since 1959 has been unable to overcome it.”

On Friday, The Havana Times blog reported that Mr. Zurbano had told a gathering of Afro-Cuban advocates that he had been dismissed from his post at the publishing house of the Casa de las Americas cultural center, leaving the implication that the dismissal was connected to the article. Other associates said Mr. Zurbano told them he had been removed but would continue working there.

Reached by telephone in Havana, Mr. Zurbano would not comment on his employment. “What is The New York Times going to do about it?” he asked. He angrily condemned the editors of the opinion section for a change in the headline that he felt had distorted his theme.