[5] Material from Musturzabalsuchus has been found more recently from Valencia, Spain, being slightly older in age than specimens from other localities, dating back to the Early or Middle Campanian.

[6] Musturzabalsuchus was initially assigned to Alligatoroidea on the basis of several characters, including a lateral displacement of the foramen aereum of the articular.

[8] In 1997 it was suggested that due to this apparent similarity, along with the vagueness of descriptions in the 1869 paper and the loss of the syntype, that C. affuvelensis could be reassigned to Musturzabalsuchus, although it was also acknowledged that the lack of posterior cranial material in the genus made detailed comparisons difficult.

[1] A recent 2008 study on Matheron's specimens concluded that they belonged to a new genus distinct from Crocodylus and different from Musturzabalsuchus, named Massaliasuchus.

It is clear that Musturzabalsuchus was endemic to Europe, and was most likely restricted to Ibero-Armorica Island,[11][12] as the genus is absent from Northern and Eastern European localities from which other alligatoroid fossils have been found.