Subfamily Xiphiinae Swainson 1839 (sword fish)
Osteichthyes - Istiophoriformes - Xiphiidae
Parent taxon: Xiphiidae according to H. L. Fierstine 2006
See also Monsch 2004 and Monsch et al. 2005
Sister taxa: Embalorhynchus, Glyptorhynchus, Xiphiorhynchinae, Xiphiorhynchus
Subtaxa: Istiophorini Rotundorhynchus Tamesichthys Xiphias Xiphiorhynchini
Ecology: planktonic suspension feeder
Distribution:
• Quaternary of Italy (1 collection), United States (1: California)
• Pliocene to Pleistocene of Italy (1)
• Pliocene of Italy (2), United States (1: North Carolina)
• Oligocene of Australia (1)
• Eocene of Kazakhstan (1), the United Kingdom (2)
• Paleocene of United States (1: Maryland)
Total: 11 collections including 13 occurrences