Known. A new kind of jar for plant oil sat in a packed Roman hold.
About 65 metres off a beach near Palma, on Mallorca, the Ses Fontanelles wreck held a Roman cargo from the 4th century. The ship had come from Cartagena, in south-east Spain. Four kinds of amphora filled the hold. Three kinds were already known. Many of those were labelled for anchovy sauce, and some flat-bottomed jars held fruit. The fourth kind is new. It is larger and heavier, and it was used for plant oil. Painted labels name the owners Alunnius and Ausonius. Grape leaves were stuffed in tight so the jars would not knock together.
The page does not say what is still argued.
https://www.ancient-origins.net/news-history-archaeology/roman-amphora-shipwreck-0020712