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Published January 31, 1935 | public
Journal Article

New genus of rodent from the Sespe Eocene

Stock, Chester

Abstract

The structural characters and phylogenetic relationships of Tertiary aplodont rodents have been discussed by several authors. Although the earliest known aplodonts occur in the John Day formation, it has been advocated, especially by Matthew, that the origin of the group is to be found in the family Ischyromyidae as represented by the genera Prosciurus and Paramys. Schlosser, however, has suggested the derivation of the John Day genus from Sciurodon of the European Phosphorites.

Additional Information

© 1935 Geological Society of America. Bead before the Pacific Coast Branch of the Paleontological Society, April 12, 1934. Manuscript received by the Secretary of the Geological Society, April 9, 1934.

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023