Journal article
Flightless bird from the Cretaceous of Mongolia
Citation
Perle, A.; Norell, M. A.; Chiappe, L. M.; Clark, J. M. (1993). Flightless bird from the Cretaceous of Mongolia. Nature 362: 623-626. doi:10.1038/362623a0
Journal article
Perle, A.; Norell, M. A.; Chiappe, L. M.; Clark, J. M. (1993). Flightless bird from the Cretaceous of Mongolia. Nature 362: 623-626. doi:10.1038/362623a0