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References
- ↑ Moore, R.C. (1959). Arthropoda I - Arthropoda General Features, Proarthropoda, Euarthropoda General Features, Trilobitomorpha. Treatise on Invertebrate Paleontology. Vol. Part O. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. O446 and O468. ISBN 0-8137-3015-5.
- ↑ Department of entomology, Texas A&M University. "Tobrilidae" . Retrieved 2014-01-03.
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