BioStor
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 | Fossil chitons of Western North America S Stillman Berry (1922) Proceedings of the California Academy of Sciences 11: 399-526 |
 | ANNUAL REPRODUCTIVE CYCLES OF THE CHITONS, KATHERINA TUNICATA AND MOPALIA HINDSII A C Giese, J S Tucker and R A Boolootian (1959) Biol Bull 117: 81-88 |
 | Lithophaga aristata in the shell-plates of chitons (Mollusca) R C Bullock and K J Boss (1971) Breviora 369: 1-10 |