Table 4. Upper Oligocene to Pliocene Tofino Basin ichthyoliths also occurring in deep-sea strata (cores). In situ Tofino Basin ichthyolith sediment deposition (minimal or no reworking) is indicated for these subtypes.

Subtype	Deep-sea core occurrence	Overlap occurrence	Tofino Basin occurrence	No. spec.
cf. narrow curved triangle Doyle et al., 1974	upper Oligocene to lower Miocene; rare above	upper Oligocene to lower Miocene; rare above	Oligocene/ Miocene boundary and Miocene	24
cf. short triangle stepped margin Doyle et al., 1974	Olig./ Mioc. boundary to Quaternary	Olig./ Mioc. boundary and Miocene	Olig./ Mioc. boundary and Miocene	6
cf. triangle small top Ramsey et al., 1976	Cretaceous to Quaternary	upper Oligocene and Miocene	upper Oligocene and Miocene	3
cf. small triangle long striations Dunsworth et al., 1975	Olig./ Mioc. boundary to Quaternary	Miocene; pos. lower Pliocene	Miocene; pos. lower Pliocene	2
cf. long triangle stepped margin Doyle et al., 1974	upper Miocene to Recent	upper Miocene and Pliocene	upper Miocene and Pliocene	5