Prefica is an extinct genus of bird that lived during the Ypresian stage of the Eocene epoch.

Distribution

Prefica nivea is |known from the Green River Formation of Wyoming.[1]

References

  1. ^ Olson, Storrs L. (1987). "An Early Oilbird from the Green River Formation of Wyoming (Caprimulgiformes: Steatornithidae)" (PDF). Documents des Laboratoires de Géologie, Lyon. 99: 57–69.


Allikas: https://en.wikipedia.org/wiki/Prefica
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