 Nevertheless, Dal Sasso & Maganuco did not consider "Scipionyx" to have been a permanent resident of small islands throughout tens of millions of years, but more likely a recent immigrant arriving during a dispersal wave, probably from North-Africa.They admitted this was at odds with their own phylogenetic analysis, showing "Scipionyx" to be a basal compsognathid, but they pointed out that the phylogeny found was uncertain due to the juvenile status of the fossil.Land animals actually found in the Pietraroja deposits are all small.