it was reclassified as the type specimen of Anchisaurus polyzelus (ACM 41109), a prosauropod. This botanist is denoted by the author abbreviation E.Hitchc. when citing a botanical name. As he had researched the geologic lake which once filled the Connecticut River basin, this prehistoric lake was named after him. Since he had done geological research on the Holyoke Range, one of the mountains there, Mount Hitchcock, was named after him. He was elected a Fellow of the American Academy of Arts and Sciences in 1834. From 1856 to 1861, Hitchcock was the State Geologist for Vermont. In 1841, he was elected as a member to the American Philosophical Society. His collections, a bust and portrait can be viewed at the Amherst College Museum of Natural History. The Archives and Special Collections at Amherst holds his papers. In 1821, he married Orra White, one of the earliest women botanical and scientific illustrators in the U.S. The two worked closely together, and she contributed more than 1,000 illustrations to his many scientific publications. Paleontological chart He inserted a paleontological chart in his Elementary Geology (1840). It shows a branching diagram of the plant and animal kingdom against a geological background. He referred to it as a tree. This "tree of life" is the earliest known version that incorporates paleontological and geological information. Hitchcock was an advocate of gap creationism. Hitchcock saw God as the agent of change. He explicitly rejected evolution and a religious six-day creation. He perceived that new species were introduced by a Deity at the right time in the history of the earth. The chart is present in all editions between 1840 and 1859. After Charles Darwin (1859) published his On the Origin of Species, a tree of life image was generally interpreted as an evolutionary tree. In the 1860 edition of Elementary Geology Hitchcock dropped the chart. In 1863 Hitchcock wrote an article in which he criticized Darwin’s theory of natural selection. After his death in 1864, his son Charles Henry Hitchcock (1836–1919) published a new edition (1870) also without a paleontological chart. Charles then published books and articles of his own. Writings Geology of the Connecticut Valley (1823) "Retrospection: A Sermon Delivered at Amherst, MA, at Close of Spring Term". May 13, 1823. Northampton, MA: Sylvester Judd, Jr., 1823. Catalogue of the Plants within Twenty Miles of Amherst (1829) An Essay on Temperance, Addressed Particularly to Students,