Crossvallia

Crossvallia; Temporal range: Late Paleocene; ~55 Ma PreЄ Є O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Sphenisciformes
Family:	Spheniscidae
Genus:	†Crossvallia; Tambussi et al. 2005
Species
	Crossvallia unienwillia (type)

Crossvallia is an extinct genus of penguins which contains a single species, whose remains have been recovered from and named after the Late Paleocene Cross Valley Formation on Seymour Island, Antarctica.^[1] Measuring about 140 centimetres (4.6 ft), it was larger than any living penguin.^[2]

References

↑ Cross Valley at Fossilworks.org
↑ Tambussi, Claudia P.; Reguero, Marcelo A.; Marenssi, Sergio A.; Santillana, Sergio N. (2005). "Crossvallia unienwillia, a new Spheniscidae (Sphenisciformes, Aves) from the Late Paleocene of Antarctica". Geobios. 38 (5): 667–675. doi:10.1016/j.geobios.2004.02.003.

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[1] Cross Valley at Fossilworks.org

[Tambussi-2] Tambussi, Claudia P.; Reguero, Marcelo A.; Marenssi, Sergio A.; Santillana, Sergio N. (2005). "Crossvallia unienwillia, a new Spheniscidae (Sphenisciformes, Aves) from the Late Paleocene of Antarctica". Geobios. 38 (5): 667–675. doi:10.1016/j.geobios.2004.02.003.