†subfamily Tonsalinae Mayr and Goedert 2018 (bird)
Aves - Suliformes - Plotopteridae
Full reference: G. Mayr and J. L. Goedert. 2018. First record of a tarsometatarsus of Tonsala hildegardae (Plotopteridae) and other avian remains from the late Eocene/early Oligocene of Washington State (USA). Geobios 51:51-59
Parent taxon: Plotopteridae according to G. Mayr and J. L. Goedert 2018
Sister taxa: Empeirodytes, Phocavis, Plotopterum, Stemec, Stenornis
Subtaxa: Copepteryx Hokkaidornis Klallamornis Olympidytes Tonsala
Ecology: ground dwelling carnivore
Distribution:
• Oligocene of Japan (9 collections), United States (4: Washington)
• Eocene to Oligocene of United States (2: Washington)
Total: 15 collections including 19 occurrences