Theodore Dru Alison Cockerell [SEP] date of birth
Theodore Dru Alison Cockerell
Theodore Dru Alison Cockerell (1866–1948) was an American zoologist, born at Norwood, England, and brother of Sydney Cockerell. He was educated at the Middlesex Hospital Medical School, and then studied botany in the field in Colorado in 1887–90. Subsequently, he became a taxonomist and published numerous papers on the Hymenoptera, Hemiptera, and Mollusca, as well as publications on paleontology and evolution.
Personal life.
Cockerell was born in Norwood, Greater London and died in San Diego, California.
. The specimen is composed of a partially complete adult female crown wasp that has been preserved as a compression fossil in shale of fine volcanic ash from the Florissant Formation in Colorado. When the fossil was first recovered and studied, the age of the Florissant Formation was not firmly determined, and a tentative Miocene date was advocated. The formation has subsequently been determined to be late Eocene in age. The "Protostephanus" fossil was first studied by paleoentomologist Theodore Dru Alison Cockerell of the Museum of Comparative Zoology. Cockerell's 1906 type