“…We have coded in our dataset 14 relatively complete Jiufotang tapejarid specimens: the holotypes of Sinopterus dongi (IVPP V 13363, Wang & Zhou, 2003 ), Huaxiapterus jii (GMN-03-11-001, Lü et al, 2005), Huaxiapterus corollatus (ZMNH M813, Lü et al, 2006a ), Huaxiapterus benxiensis (BXGM V0011, Lü et al, 2007 ), Sinopterus lingyuanensis (JPM-2014-005, Lü et al, 2016 ) and Huaxiapterus atavismus (XHPM 1009, Lü et al, 2016 ), as well as specimens D2525 ( Lü et al, 2006b ), IVPP V 23388 ( Zhang et al, 2019 ), D3702 ( Shen et al, 2021 ), and five new specimens which are presented here for the first time (D4019, BPMC 103, BPMC 104, BPMC 105, and BPMC 107). The holotype of Sinopterus gui (see Li, Lü & Zhang, 2003 ), specimens PMOL-AP00030 ( Liu et al 2014 ), SDUST-V1012 ( Zhou, Niu & Yu, 2022 ), and SDUST-V1014 ( Zhou et al, 2022 ), as well the new specimen BPMC 106, were not included in the morphometric dataset due to their high level of incompleteness. The holotype of Nemicolopterus crypticus is also not included due its extremely young age (most likely a near-hatchling; Naish, Witton & Martin-Silverstone, 2021 ) and the incompleteness of its wings ( Wang et al, 2008 ).…”