RECORDMicheletti, Bryc, Ancona Esselmann, Freyman, Moreno, Poznik, Shastri, the 23andMe Research Team, Beleza and Mountain, "Genetic Consequences of the Transatlantic Slave Trade in the Americas," AJHG, published 23 July 2020 (doi 10.1016/j.ajhg.2020.06.012), used 50,281 research participants and combined DNA with the slave-voyage records. ScienceDaily's report of the paper: "Nigerian ancestry is over-represented in African Americans in the U.S.," explained mainly by trade within the Americas, primarily from the Caribbean; Senegambian ancestry was much lower than the voyage records predicted, possibly from deaths on rice plantations; and "about 15 African women had children for each African man in Central and South America."
PATTERNthe African share in Black Americans lines up with the ship records, region by region, with gaps the authors trace to the intra-American trade. That is evidence for African descent, and it contradicts the Lens as a claim about the majority of the genome
LENS (WW9)the ships are documented; the question the Lens keeps open is who was already here and got filed under the same label
OPENthe pages fetched did not report the paper's findings on Native American ancestry in US participants; needs the full text
SOURCEMixed Race Studies abstract page; ScienceDaily, 23 July 2020.