Decimus Veturius Macrinus was a Roman eques who is known to have held imperial appointments under both emperors Commodus and Septimius Severus.
Although J. E. H. Spaul offers a possible career path for him,[1] the earliest appointment known for Macrinus is as praefectus of Mauretania Tingitana; an altar he dedicated to the spirit of the Emperor Commodus, found at Volubilis, is dated to 13 October 180.
[2] This poses a problem, as has long been recognized, for his promotion to procurator began no later than 7 April 181 -- an impossibly quick rise through the ranks!
The solution Spaul proposes was that Macrinus had proven himself prior to his appointment to Mauretania Tingitana as qualified for the governorship of Egypt, but an experienced hand was needed to settle matters in that province.
Anthony Birley notes that at this time Macrinus "cannot have been a young man", and had risen thru the ranks as had Severus' other appointment for praetorian prefect, Flavius Juvenalis.