author
John Mason Clarke
1857–1925
A pioneering American geologist and paleontologist, he helped shape the study of Paleozoic fossils and the geology of New York State. His work combined field science, museum leadership, and a gift for explaining ancient life in a vivid, accessible way.
1 Audiobook
Observations on the Terataspis grandis, Hall, the largest known trilobite
by John Mason Clarke
About the author
Born in Canandaigua, New York, in 1857, John Mason Clarke became one of the leading American paleontologists of his era. He studied at Amherst College and began his career in teaching before moving fully into geology and fossil research.
Clarke is especially remembered for his work on Paleozoic invertebrate fossils and for his long association with the New York State Museum, where he served in senior scientific leadership roles. He also worked as New York State Paleontologist and State Geologist, helping document the state's deep geological history through major reports, museum work, and field investigations.
Beyond his technical research, he wrote widely and helped bring paleontology to a broader public. His career linked scholarship, public science, and museum education, and he remained an important figure in American geology until his death in 1925.