Presbyornis isoni, new species, is described from a humerus and an alar phalanx from marine sediments of the late Paleocene Aquia Formation in Maryland. About the size of the smallest living species of crane (Gruidae), it ...
Beadell, J. S.; Ishtiaq, F.; Covas, R.; Melo, M.; Warren, B. H.; Atkinson, C. T.; Bensch, T.; Graves, Gary R.; Jhala, Yadvendradev; Peirce, M. A.; Rahmani, A. R.; Fonseca, Dina M.; Fleischer, Robert C.(2006)