Ignotornis

Ignotornis was a bird ichnogenus dating back to the Cenomanian of Colorado.^[1]

Footnotes

↑ "Bird Tracks," in Lockley, Janke, and Theisen (2001). Pg. 446.

References

Lockley, M. G., Janke, P., and Theisen, L., 2001, First reports of bird and ornithopod tracks from the Lakota Formation (Early Cretaceous), Black Hills, South Dakota: In: Mesozoic Vertebrate Life, edited by Tanke, D. H., and Carpenter, K., Indiana University Press, pp. 443–452.

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