I'm finding contradictory descriptions about how Roman legions were organized during the Gallic Wars (58-50 BC).
- An appendix on Roman military organization in The Landmark Julius Caesar highlights the maniple and says that there was "no fixed command structure above the level of the maniple"; but the Wikipedia article on Roman legion's says that the Marian reforms organized around cohorts (rather than two-century maniples). Caeser himself mentions maniples a few times in his own text.
- Many sources emphasize the abandoning of the early Republican distinctions among hastati, principes, and triarii by Caeser's time, replacing them with a single form of heavy infantry; but a footnote to the Oxford World's Classics edition of The Gallic War distinguishes standards triarii and notes that the other "two main standards belonged to the chief centurions of the divisions known as hastati and principes”.
- Wikipedia and many other sources state that even the nominal strength of a century was 80 and in practice was considerably smaller; but a footnote in the Oxford Gallic War states that they consisted of 100 men in Caesar's time.
How was the Roman army in fact organized during Caesar's campaigns in Gaul? Would the following figure be an accurate representation? If so, what role did maniples play?