Yixianopterus jingangshanensis JZMP-V12 (Lü et al. 2006) ~20 cm skull length, Barremian/Aptian Early Cretaceous ~125 mya, was incorrectly considered an ornithocheirid pterosaur like Haopterus. Here Yixianopterus was derived from a sister to the wukongopterid, Changchengopterus as yet one more venture into the pterodactyloid-grade Bauplan. See the pterosaur family tree here.

Lü J, Ji S, Yuan C, Gao Y, Sun Z and Ji Q 2006. New pterodactyloid pterosaur from the Lower Cretaceous Yixian Formation of Western Liaoning. In J. Lü, Y. Kobayashi, D. Huang, Y.-N. Lee (eds.), Papers from the 2005 Heyuan International Dinosaur Symposium. Geological Publishing House, Beijing 195-203.

Jiang S-X, Zhang X-J, Cheng X and Wang X-L 2021. A new pteranodontoid pterosaur forelimb from the upper Yixian Formation, with a revision of Yixianopterus jingangshanensis. Vertebrata Pal-Asiatica 59:81–94.

wiki/Yixianopterus