Orthogenesis as Observed from Paleontological Evidence Beginning in the Year 1889

• 1 March 1922
• journal article
• Published by University of Chicago Press in The American Naturalist
• Vol. 56  (643) , 134-143
• https://doi.org/10.1086/279853

Abstract

Keywords

• ORTHOGENESIS AS OBSERVED
• YEAR
• PALEONTOLOGICAL EVIDENCE BEGINNING