sentences:  Witton's updated skull reconstruction was different enough from the skull of "I. sinensis" for him to conclude they did not belong in the same genus, but he advised against placing "I. sinensis" in its own genus.Witton pointed out that the two "Istiodactylus" species had been grouped with "Liaoxipterus brachyognathus" in previous studies, and that "I. sinensis" may instead have been a species in the genus "Liaoxipterus", or even the same species, since they were found in the same formation and had few differences.He provisionally retained the existing taxonomy, awaiting further investigation of the issue.