Erwin Sachem Christman

• Name — Erwin S. Christman • Died — 14 November 1921 • Born — 14 January 1885 • Birthplace — Clinton, New Jersey • Place of death — New York City, New York • Known for — Painting, sculpting • Education — Art Students League, National Academy of Design

Little is known of Christman's early life, aside from that he was born in Clinton, New Jersey on January 14, 1885. He studied at the Art Students League and the National Academy of Design, working under the supervision of palaeontologist Henry Fairfield Osborn.

His first published illustrations were a series of illustrations of the holotype of Tyrannosaurus rex, published in 1906. In 1912, he produced a scale-model diorama for a planned Tyrannosaurus mount; this early version was shelved for its complexity. Subsequently, he provided skull diagrams for Barnum Brown's 1916 paper describing the hadrosaur Prosaurolophus maximus, a suite of reconstructions of the sauropod Camarasaurus lentus for Osborn and Charles Craig Mook's 1921 monograph, and several illustrations and sculptures of brontothere heads. Christman died on November 14, 1921, in New York City.

• Illustration — Skeletal and life reconstruction of Lambdotherium • Illustration — Life reconstruction of a Woolly mammoth • Illustration — Life reconstruction of Stephanorhinus • Illustration — Portrait of Camarasaurus • Illustration — Life reconstruction of Struthiomimus • Illustration — Skeletal and life reconstruction of Megacerops • Illustration — Model of Palaeosyops at the AMNH • Illustration — Life reconstruction of Diatryma (Gastornis) • Illustration — Orthogenetic sequence of brontothere evolution, illustrated for Henry Fairfield Osborn's monograph on brontotheres. • Illustration — Models of the orthogenetic brontothere sequence • Illustration — Model of Megacerops at the AMNH • Illustration — Model of Phiomia at the AMNH

Erwin Sachem Christman is recorded as artist, sculptor and scientific illustrator.