Isaac Lea

Isaac Lea (March 4, 1792 – December 8, 1886) was an American publisher, conchologist and geologist. He was a partner in the publishing businesses Matthew Carey & Sons; Carey, Lea & Carey; Carey, Lea & Blanchard; and Lea & Blanchard.

He authored multiple books describing the freshwater mussel genus ''Unio'' and named 1,842 species of fifty genera of freshwater and land mollusks. He sparked a scientific controversy amongst geologists when he published about his discovery of fossilized footprints in Mount Carbon, Pennsylvania, that he incorrectly proposed were from a reptile from the Devonian Period over 360 million years old. The fossil has since been identified as that of an amphibian from the Mississippian Age over 330 million years old.

He served as president of the Academy of Natural Sciences of Philadelphia from 1858 to 1863 and of the American Association for the Advancement of Sciences in 1860. Provided by Wikipedia
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  1. 1
    Observations on the genus Unio together with descriptions of new species in the families Naiades, Colimacea, Lymnaeana, Melaniana and Peristomiana read before the American Philosophical Society, and originally published in its transactions

    Observations on the genus Unio together with descriptions of new species in the families Naiades, Colimacea, Lymnaeana, Melaniana and Peristomiana read before the American Philosop... by Lea, Isaac 1792-1886

    Published 1842
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    Observations of the genus Unio together with descriptions ot eighteen new species ; and of the genus Symphynota, now separated from the family of Naiades, containing nine species

    Observations of the genus Unio together with descriptions ot eighteen new species ; and of the genus Symphynota, now separated from the family of Naiades, containing nine species by Lea, Isaac 1792-1886

    Published 1829
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    Observations on the genus Unio together with descriptions of new species in the families Naiades, Colimacea, Lymnaeana, Melaniana and Peristomiana read before the American Philosophical Society, and originally published in its transactions

    Observations on the genus Unio together with descriptions of new species in the families Naiades, Colimacea, Lymnaeana, Melaniana and Peristomiana read before the American Philosop... by Lea, Isaac 1792-1886

    Published 1842
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  4. 4
    Observations on the genus Unio together with descriptions of new species in the families Naiades, Colimacea, Lymnaeana, Melaniana and Peristomiana read before the American Philosophical Society, and originally published in its transactions

    Observations on the genus Unio together with descriptions of new species in the families Naiades, Colimacea, Lymnaeana, Melaniana and Peristomiana read before the American Philosop... by Lea, Isaac 1792-1886

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  5. 5
    Observations of the genus Unio together with descriptions ot eighteen new species ; and of the genus Symphynota, now separated from the family of Naiades, containing nine species

    Observations of the genus Unio together with descriptions ot eighteen new species ; and of the genus Symphynota, now separated from the family of Naiades, containing nine species by Lea, Isaac 1792-1886

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