Othniel Charles Marsh

Edward Drinker Cope and the Neo-Lamarckian School of Thought

Edward Drinker Cope and the Neo-Lamarckian School of Thought

On July 28, 1840, American paleontologist and comparative anatomist Edward Drinker Cope was born. Being s well as a noted herpetologist and ichthyologist, he was a founder of the Neo-Lamarckism school of thought. This school believed that changes in developmental (embryonic) timing, not natural selection, was the driving force of evolution. Cope thought that groups of species that shared similar developmental patterns could be grouped into more inclusive groups (i.e. genera, families,…
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Othniel Charles Marsh and the Great Bone Wars

Othniel Charles Marsh and the Great Bone Wars

O.C. Marsh (back row and center), surrounded by armed assistants for his 1872 expedition. On October 29, 1831, American paleontologist Othniel Charles Marsh was born. Being one of the preeminent scientists in the field, he discovered over 1000 fossils and contributed greatly to knowledge of extinct North American vertebrates. From the 1870s to 1890s he competed with rival paleontologist Edward Drinker Cope in a period of frenzied Western American expeditions known as…
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