Cyril Alexander Walker (8 February 1939 – 6 May 2009) was a British palaeontologist, curator of fossil birds in the Natural History Museum.
[1] Walker joined the Museum in 1958 and spent his entire career there, becoming curator in 1985.
[1] Walker's most noteworthy finding was his recognition of a new subclass of fossils birds, the Enantiornithes.
[1] Together with David Ward, he co-authored a best selling[2] book, Smithsonian Handbook of Fossils.
[5] It is the only specimen of Dinornithiformes in the collections of the National Museum of Natural History, Bulgarian Academy of Sciences in Sofia.