Hystrichokolpoma sequanaportum Deflandre and Deflandre-Rigaud, 1958, cards 1352-1353, 4 figs ex Masure in Fauconnier and Masure, 2004, p.284-285, pl.42, fig.9; Fauconnier and Masure, 2004, pl.42, fig.9. Holotype: Fauconnier and Masure, pl.42, fig.9. This name was not validly published in Deflandre and Deflandre-Rigaud (1958) since no description was provided nor type designated. Age: Late Cretaceous.