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Animalia | Arthropoda | Insecta | Diptera | Nemestrinidae and research notes and Animalia | Arthropoda | Insecta | Diptera | Nemestrinidae and Paleontology--Colorado--Teller County and Hirmoneura by Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948, author and Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948, author from Undated
- UC Boulder