I think that most historians would agree that the literature would suggest that while the Greeks ruled the sea, the Romans ruled the land. The recent discovery listed here showing the excavation of rams from the prows of Roman ships used in the Punic War puts new evidence on the table countering this traditional assumption. It does make sense, however, in light of the fact that the first Punic War (c.2250 BCE) lasted almost 24 years. You would expect that the Romans would work on perfecting their sea faring skills. This begs the question about the construction techniques used for these ships. Hopefully the sea floor scanning technology that uncovered these prows and remnants of ships will continue to contribute to our knowledge of this topic!
More information on this underwater archaeology project here.