extinction

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Asa Gray
James D. Dana

American Journal of Science March 1888, s3-35 (207) 181-203; DOI: https://doi.org/10.2475/ajs.s3-35.207.181
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Notice of some of the works of J. Barrande, with extracts from his remarks with reference to the mode of origin of Paleozoic species
Frank H. Bradley

American Journal of Science September 1872, s3-4 (21) 180-191; DOI: https://doi.org/10.2475/ajs.s3-4.21.180
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Derivative hypothesis of life and species
Owen

American Journal of Science January 1869, s2-47 (139) 33-67; DOI: https://doi.org/10.2475/ajs.s2-47.139.33

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