Came accross this news shared by the NHM Maastricht, another fossil bird has been discribed from the same quarry and layer in which the famous wonderchicken "Asteriornis" was found.
This being the Romontbos quarry in Eben-Emael in Belgium (near de border with Maastricht in the Netherlands) which dates to the Late Maastrichtian era (66,7 mya)
Here are some links to the news articles (both in english as in dutch) as well as as video.
https://www.theguardian.com/science/2022/nov/30/ct-scans-toothed-bird-fossil-jaw-mobile-palate-avian-evolution
https://www.bbc.com/news/uk-england-cambridgeshire-63809867
https://www.nature.com/articles/d41586-022-04181-7
https://www.nature.com/articles/d41586-022-03692-7
https://www.science.org/content/article/new-look-ancient-jaw-fossil-rewrites-bird-evolution
Dutch article:
https://www.1limburg.nl/nieuws/1890918/fossiel-van-vogel-met-tanden-ontdekt-in-sint-pietersberg