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Percival Sidney Warren
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Journal Article
Chimaeroid fossil egg capsules from Alberta
Publisher: Paleontological Society
Published: 01 September 1948
Journal of Paleontology (1948) 22 (5): 630–631.
Journal Article
Cretaceous fossil horizons in the Mackenzie River Valley [Canada]
Publisher: Paleontological Society
Published: 01 March 1947
Journal of Paleontology (1947) 21 (2): 118–123.
Journal Article
An Aptian horizon in the Cretaceous of the lower Mackenzie Valley [Northwest Terr.]
Publisher: Paleontological Society
Published: 01 January 1937
Journal of Paleontology (1937) 11 (1): 69–72.
Journal Article
A Timanites from Upper Devonian beds of America
Publisher: Paleontological Society
Published: 01 October 1936
Journal of Paleontology (1936) 10 (7): 632–636.