Plotopterum is an extinct genus of flightless seabird of the family Plotopteridae, native to the North Pacific during the Late Oligocene and the Early...

relatively small plotopterid, comparable in size with its Miocene relative Plotopterum. It is only known from a single right coracoid belonging to an adult...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

Japan as members of the family Plotopteridae, but distinct enough from Plotopterum in their general anatomy to warrant their own genus. The Washington fossils...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

Family: †Plotopteridae Howard, 1969 Genera †Empeirodytes †Phocavis †Plotopterum †Stemec †Stenornis †Tonsalinae Mayr & Goedert, 2018 †Copepteryx †Hokkaidornis...

plotopterids Copepteryx and Hokkaidornis, but larger than the derived Plotopterum. Empeirodytes is mostly differentiated from other genera of plotopterids...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

plotopterids, and contrast with the youngest known plotopterid, the small-sized Plotopterum from the Miocene of Japan. Tentatively referred to the genus, the fairly...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

indet. Chelonia indet. Crocodylia indet. †Psephophorus calvertensis †Plotopterum joaquinensis †Allodesmus kernensis †Allodelphis pratti †Anchitherium...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

the two described genera of North American plotopterids, Tonsala and Plotopterum, the validity of the genus was only assumed due to the assumed size of...

†Praecarbo Urile †Valenticarbo †Plotopteridae Empeirodytes Phocavis Plotopterum Stemec Stenornis Sulidae †Bimbisula †Empheresula †Enkurosula †Eostega...

Plotopterum joaquinensis...