Morrison, S.; Sarna-Wojcicki, A. (1981): Time equivalent bay and outer shelf faunas of the Neogene Humboldt Basin, California and correlation to the North Pacific microfossil zones of DSDP 173. Osaka Mus. Nat. Hist., Osaka, Japan, In: Ikebe, Nobuo (editor), Chiji, Manzo (editor), Tsuchi, Ryuichi (editor), Morozumi, Yoshiro (editor), Kawata, Tokiko (editor), Proceedings of IGCP-114 international workshop on Pacific Neogene biostratigraphy, 130-131, georefid:1983-046721